Home / 18,721.09-25,835.12-10,337.59

Finding the Fourth Proportional to 18,721.09, 25,835.12 and 10,337.59

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Solution

The fourth proportional to 18,721.09, 25,835.12 and 10,337.59 is: 14,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.09 : 25,835.12 = 10,337.59 : x
  2. Step 2: Convert to fraction form
    18,721.09/25,835.12 = 10,337.59/x
  3. Step 3: Cross multiply
    18,721.09x = 25,835.12 × 10,337.59
  4. Step 4: Simplify right side
    18,721.09x = 267,072,878.16
  5. Step 5: Solve for x
    x = 267,072,878.16/18,721.09
  6. Step 6: Final answer
    x = 14,265.88

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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.