Home / 15,708.80-23,555.20-9,136.32

Finding the Fourth Proportional to 15,708.80, 23,555.20 and 9,136.32

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Solution

The fourth proportional to 15,708.80, 23,555.20 and 9,136.32 is: 13,699.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.80 : 23,555.20 = 9,136.32 : x
  2. Step 2: Convert to fraction form
    15,708.80/23,555.20 = 9,136.32/x
  3. Step 3: Cross multiply
    15,708.80x = 23,555.20 × 9,136.32
  4. Step 4: Simplify right side
    15,708.80x = 215,207,844.86
  5. Step 5: Solve for x
    x = 215,207,844.86/15,708.80
  6. Step 6: Final answer
    x = 13,699.83

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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.