Home / 15,252.85-21,046.51-8,538.76

Finding the Fourth Proportional to 15,252.85, 21,046.51 and 8,538.76

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Solution

The fourth proportional to 15,252.85, 21,046.51 and 8,538.76 is: 11,782.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,252.85 : 21,046.51 = 8,538.76 : x
  2. Step 2: Convert to fraction form
    15,252.85/21,046.51 = 8,538.76/x
  3. Step 3: Cross multiply
    15,252.85x = 21,046.51 × 8,538.76
  4. Step 4: Simplify right side
    15,252.85x = 179,711,023.76
  5. Step 5: Solve for x
    x = 179,711,023.76/15,252.85
  6. Step 6: Final answer
    x = 11,782.13

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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.