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Finding the Fourth Proportional to 8,779.92, 13,175.08 and 3,237.17

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Solution

The fourth proportional to 8,779.92, 13,175.08 and 3,237.17 is: 4,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.92 : 13,175.08 = 3,237.17 : x
  2. Step 2: Convert to fraction form
    8,779.92/13,175.08 = 3,237.17/x
  3. Step 3: Cross multiply
    8,779.92x = 13,175.08 × 3,237.17
  4. Step 4: Simplify right side
    8,779.92x = 42,649,899.76
  5. Step 5: Solve for x
    x = 42,649,899.76/8,779.92
  6. Step 6: Final answer
    x = 4,857.66

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1.5x scale

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.