Home / 15,939.20-22,000.32-11,225.60

Finding the Fourth Proportional to 15,939.20, 22,000.32 and 11,225.60

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Solution

The fourth proportional to 15,939.20, 22,000.32 and 11,225.60 is: 15,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,939.20 : 22,000.32 = 11,225.60 : x
  2. Step 2: Convert to fraction form
    15,939.20/22,000.32 = 11,225.60/x
  3. Step 3: Cross multiply
    15,939.20x = 22,000.32 × 11,225.60
  4. Step 4: Simplify right side
    15,939.20x = 246,966,792.19
  5. Step 5: Solve for x
    x = 246,966,792.19/15,939.20
  6. Step 6: Final answer
    x = 15,494.30

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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.