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Finding the Fourth Proportional to 8,472.85, 12,702.96 and 3,535.48

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Solution

The fourth proportional to 8,472.85, 12,702.96 and 3,535.48 is: 5,300.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.85 : 12,702.96 = 3,535.48 : x
  2. Step 2: Convert to fraction form
    8,472.85/12,702.96 = 3,535.48/x
  3. Step 3: Cross multiply
    8,472.85x = 12,702.96 × 3,535.48
  4. Step 4: Simplify right side
    8,472.85x = 44,911,061.02
  5. Step 5: Solve for x
    x = 44,911,061.02/8,472.85
  6. Step 6: Final answer
    x = 5,300.58

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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.