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Finding the Fourth Proportional to 7,183.48, 9,913.06 and 3,996.76

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Solution

The fourth proportional to 7,183.48, 9,913.06 and 3,996.76 is: 5,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.48 : 9,913.06 = 3,996.76 : x
  2. Step 2: Convert to fraction form
    7,183.48/9,913.06 = 3,996.76/x
  3. Step 3: Cross multiply
    7,183.48x = 9,913.06 × 3,996.76
  4. Step 4: Simplify right side
    7,183.48x = 39,620,121.69
  5. Step 5: Solve for x
    x = 39,620,121.69/7,183.48
  6. Step 6: Final answer
    x = 5,515.45

Related Problems

Find fourth proportional to 3,591.74, 4,956.53 and 1,998.38
Half scale
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Double scale
Find fourth proportional to 7,184.48, 9,914.44 and 3,997.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.