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Finding the Fourth Proportional to 8,332.76, 12,503.28 and 3,403.64

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Solution

The fourth proportional to 8,332.76, 12,503.28 and 3,403.64 is: 5,107.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,332.76 : 12,503.28 = 3,403.64 : x
  2. Step 2: Convert to fraction form
    8,332.76/12,503.28 = 3,403.64/x
  3. Step 3: Cross multiply
    8,332.76x = 12,503.28 × 3,403.64
  4. Step 4: Simplify right side
    8,332.76x = 42,556,663.94
  5. Step 5: Solve for x
    x = 42,556,663.94/8,332.76
  6. Step 6: Final answer
    x = 5,107.15

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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.