Home / 18,721.38-25,835.52-10,337.88

Finding the Fourth Proportional to 18,721.38, 25,835.52 and 10,337.88

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Solution

The fourth proportional to 18,721.38, 25,835.52 and 10,337.88 is: 14,266.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.38 : 25,835.52 = 10,337.88 : x
  2. Step 2: Convert to fraction form
    18,721.38/25,835.52 = 10,337.88/x
  3. Step 3: Cross multiply
    18,721.38x = 25,835.52 × 10,337.88
  4. Step 4: Simplify right side
    18,721.38x = 267,084,376.32
  5. Step 5: Solve for x
    x = 267,084,376.32/18,721.38
  6. Step 6: Final answer
    x = 14,266.28

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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.