Home / 12,930.20-17,837.57-11,061.85

Finding the Fourth Proportional to 12,930.20, 17,837.57 and 11,061.85

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Solution

The fourth proportional to 12,930.20, 17,837.57 and 11,061.85 is: 15,260.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.20 : 17,837.57 = 11,061.85 : x
  2. Step 2: Convert to fraction form
    12,930.20/17,837.57 = 11,061.85/x
  3. Step 3: Cross multiply
    12,930.20x = 17,837.57 × 11,061.85
  4. Step 4: Simplify right side
    12,930.20x = 197,316,523.70
  5. Step 5: Solve for x
    x = 197,316,523.70/12,930.20
  6. Step 6: Final answer
    x = 15,260.13

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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.