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Finding the Fourth Proportional to 8,902.67, 13,347.84 and 6,405.39

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Solution

The fourth proportional to 8,902.67, 13,347.84 and 6,405.39 is: 9,603.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.67 : 13,347.84 = 6,405.39 : x
  2. Step 2: Convert to fraction form
    8,902.67/13,347.84 = 6,405.39/x
  3. Step 3: Cross multiply
    8,902.67x = 13,347.84 × 6,405.39
  4. Step 4: Simplify right side
    8,902.67x = 85,498,120.86
  5. Step 5: Solve for x
    x = 85,498,120.86/8,902.67
  6. Step 6: Final answer
    x = 9,603.65

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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.