Home / 15,272.03-21,070.82-9,885.94

Finding the Fourth Proportional to 15,272.03, 21,070.82 and 9,885.94

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Solution

The fourth proportional to 15,272.03, 21,070.82 and 9,885.94 is: 13,639.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272.03 : 21,070.82 = 9,885.94 : x
  2. Step 2: Convert to fraction form
    15,272.03/21,070.82 = 9,885.94/x
  3. Step 3: Cross multiply
    15,272.03x = 21,070.82 × 9,885.94
  4. Step 4: Simplify right side
    15,272.03x = 208,304,760.16
  5. Step 5: Solve for x
    x = 208,304,760.16/15,272.03
  6. Step 6: Final answer
    x = 13,639.62

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Double scale
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Similar ratio
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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.