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Finding the Fourth Proportional to 8,902.15, 13,353.26 and 8,360.86

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Solution

The fourth proportional to 8,902.15, 13,353.26 and 8,360.86 is: 12,541.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.15 : 13,353.26 = 8,360.86 : x
  2. Step 2: Convert to fraction form
    8,902.15/13,353.26 = 8,360.86/x
  3. Step 3: Cross multiply
    8,902.15x = 13,353.26 × 8,360.86
  4. Step 4: Simplify right side
    8,902.15x = 111,644,737.40
  5. Step 5: Solve for x
    x = 111,644,737.40/8,902.15
  6. Step 6: Final answer
    x = 12,541.32

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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.