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Finding the Fourth Proportional to 8,901.15, 13,351.76 and 8,359.86

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Solution

The fourth proportional to 8,901.15, 13,351.76 and 8,359.86 is: 12,539.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.15 : 13,351.76 = 8,359.86 : x
  2. Step 2: Convert to fraction form
    8,901.15/13,351.76 = 8,359.86/x
  3. Step 3: Cross multiply
    8,901.15x = 13,351.76 × 8,359.86
  4. Step 4: Simplify right side
    8,901.15x = 111,618,802.55
  5. Step 5: Solve for x
    x = 111,618,802.55/8,901.15
  6. Step 6: Final answer
    x = 12,539.82

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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.