Home / 16,557.20-22,857-13,009.04

Finding the Fourth Proportional to 16,557.20, 22,857 and 13,009.04

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Solution

The fourth proportional to 16,557.20, 22,857 and 13,009.04 is: 17,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,557.20 : 22,857 = 13,009.04 : x
  2. Step 2: Convert to fraction form
    16,557.20/22,857 = 13,009.04/x
  3. Step 3: Cross multiply
    16,557.20x = 22,857 × 13,009.04
  4. Step 4: Simplify right side
    16,557.20x = 297,347,627.28
  5. Step 5: Solve for x
    x = 297,347,627.28/16,557.20
  6. Step 6: Final answer
    x = 17,958.81

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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.