Home / 10,278.29-15,408-3,702.88

Finding the Fourth Proportional to 10,278.29, 15,408 and 3,702.88

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Solution

The fourth proportional to 10,278.29, 15,408 and 3,702.88 is: 5,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.29 : 15,408 = 3,702.88 : x
  2. Step 2: Convert to fraction form
    10,278.29/15,408 = 3,702.88/x
  3. Step 3: Cross multiply
    10,278.29x = 15,408 × 3,702.88
  4. Step 4: Simplify right side
    10,278.29x = 57,053,975.04
  5. Step 5: Solve for x
    x = 57,053,975.04/10,278.29
  6. Step 6: Final answer
    x = 5,550.92

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Why These Related Problems?

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