Home / 15,411.56-23,115.10-5,549.32

Finding the Fourth Proportional to 15,411.56, 23,115.10 and 5,549.32

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Solution

The fourth proportional to 15,411.56, 23,115.10 and 5,549.32 is: 8,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.56 : 23,115.10 = 5,549.32 : x
  2. Step 2: Convert to fraction form
    15,411.56/23,115.10 = 5,549.32/x
  3. Step 3: Cross multiply
    15,411.56x = 23,115.10 × 5,549.32
  4. Step 4: Simplify right side
    15,411.56x = 128,273,086.73
  5. Step 5: Solve for x
    x = 128,273,086.73/15,411.56
  6. Step 6: Final answer
    x = 8,323.17

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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.