Home / 7,561.50-11,344.65-3,121.23

Finding the Fourth Proportional to 7,561.50, 11,344.65 and 3,121.23

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Solution

The fourth proportional to 7,561.50, 11,344.65 and 3,121.23 is: 4,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,561.50 : 11,344.65 = 3,121.23 : x
  2. Step 2: Convert to fraction form
    7,561.50/11,344.65 = 3,121.23/x
  3. Step 3: Cross multiply
    7,561.50x = 11,344.65 × 3,121.23
  4. Step 4: Simplify right side
    7,561.50x = 35,409,261.92
  5. Step 5: Solve for x
    x = 35,409,261.92/7,561.50
  6. Step 6: Final answer
    x = 4,682.84

Related Problems

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Half scale
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Double scale
Find fourth proportional to 7,562.50, 11,346.15 and 3,122.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.