Home / 8,918.06-13,385.12-4,761.62

Finding the Fourth Proportional to 8,918.06, 13,385.12 and 4,761.62

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Solution

The fourth proportional to 8,918.06, 13,385.12 and 4,761.62 is: 7,146.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.06 : 13,385.12 = 4,761.62 : x
  2. Step 2: Convert to fraction form
    8,918.06/13,385.12 = 4,761.62/x
  3. Step 3: Cross multiply
    8,918.06x = 13,385.12 × 4,761.62
  4. Step 4: Simplify right side
    8,918.06x = 63,734,911.20
  5. Step 5: Solve for x
    x = 63,734,911.20/8,918.06
  6. Step 6: Final answer
    x = 7,146.72

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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.