Home / 15,839.46-21,857.61-9,466.20

Finding the Fourth Proportional to 15,839.46, 21,857.61 and 9,466.20

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Solution

The fourth proportional to 15,839.46, 21,857.61 and 9,466.20 is: 13,062.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,839.46 : 21,857.61 = 9,466.20 : x
  2. Step 2: Convert to fraction form
    15,839.46/21,857.61 = 9,466.20/x
  3. Step 3: Cross multiply
    15,839.46x = 21,857.61 × 9,466.20
  4. Step 4: Simplify right side
    15,839.46x = 206,908,507.78
  5. Step 5: Solve for x
    x = 206,908,507.78/15,839.46
  6. Step 6: Final answer
    x = 13,062.85

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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.