Home / 10,538.76-15,809.19-3,141.91

Finding the Fourth Proportional to 10,538.76, 15,809.19 and 3,141.91

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Solution

The fourth proportional to 10,538.76, 15,809.19 and 3,141.91 is: 4,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.76 : 15,809.19 = 3,141.91 : x
  2. Step 2: Convert to fraction form
    10,538.76/15,809.19 = 3,141.91/x
  3. Step 3: Cross multiply
    10,538.76x = 15,809.19 × 3,141.91
  4. Step 4: Simplify right side
    10,538.76x = 49,671,052.15
  5. Step 5: Solve for x
    x = 49,671,052.15/10,538.76
  6. Step 6: Final answer
    x = 4,713.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.