Home / 10,281.32-15,412.74-3,702.90

Finding the Fourth Proportional to 10,281.32, 15,412.74 and 3,702.90

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Solution

The fourth proportional to 10,281.32, 15,412.74 and 3,702.90 is: 5,551.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.32 : 15,412.74 = 3,702.90 : x
  2. Step 2: Convert to fraction form
    10,281.32/15,412.74 = 3,702.90/x
  3. Step 3: Cross multiply
    10,281.32x = 15,412.74 × 3,702.90
  4. Step 4: Simplify right side
    10,281.32x = 57,071,834.95
  5. Step 5: Solve for x
    x = 57,071,834.95/10,281.32
  6. Step 6: Final answer
    x = 5,551.02

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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.