Home / 15,534.24-21,436.56-8,819.76

Finding the Fourth Proportional to 15,534.24, 21,436.56 and 8,819.76

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Solution

The fourth proportional to 15,534.24, 21,436.56 and 8,819.76 is: 12,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,534.24 : 21,436.56 = 8,819.76 : x
  2. Step 2: Convert to fraction form
    15,534.24/21,436.56 = 8,819.76/x
  3. Step 3: Cross multiply
    15,534.24x = 21,436.56 × 8,819.76
  4. Step 4: Simplify right side
    15,534.24x = 189,065,314.43
  5. Step 5: Solve for x
    x = 189,065,314.43/15,534.24
  6. Step 6: Final answer
    x = 12,170.88

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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.