Home / 13,151.48-18,148.75-7,183.17

Finding the Fourth Proportional to 13,151.48, 18,148.75 and 7,183.17

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Solution

The fourth proportional to 13,151.48, 18,148.75 and 7,183.17 is: 9,912.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.48 : 18,148.75 = 7,183.17 : x
  2. Step 2: Convert to fraction form
    13,151.48/18,148.75 = 7,183.17/x
  3. Step 3: Cross multiply
    13,151.48x = 18,148.75 × 7,183.17
  4. Step 4: Simplify right side
    13,151.48x = 130,365,613.01
  5. Step 5: Solve for x
    x = 130,365,613.01/13,151.48
  6. Step 6: Final answer
    x = 9,912.62

Related Problems

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Half scale
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Double scale
Find fourth proportional to 13,152.48, 18,150.13 and 7,184.17
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.