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Finding the Fourth Proportional to 8,925.12, 12,332.04 and 8,609.76

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Solution

The fourth proportional to 8,925.12, 12,332.04 and 8,609.76 is: 11,896.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.12 : 12,332.04 = 8,609.76 : x
  2. Step 2: Convert to fraction form
    8,925.12/12,332.04 = 8,609.76/x
  3. Step 3: Cross multiply
    8,925.12x = 12,332.04 × 8,609.76
  4. Step 4: Simplify right side
    8,925.12x = 106,175,904.71
  5. Step 5: Solve for x
    x = 106,175,904.71/8,925.12
  6. Step 6: Final answer
    x = 11,896.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.