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Finding the Fourth Proportional to 8,602.00, 12,881.13 and 7,880.29

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Solution

The fourth proportional to 8,602.00, 12,881.13 and 7,880.29 is: 11,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,602.00 : 12,881.13 = 7,880.29 : x
  2. Step 2: Convert to fraction form
    8,602.00/12,881.13 = 7,880.29/x
  3. Step 3: Cross multiply
    8,602.00x = 12,881.13 × 7,880.29
  4. Step 4: Simplify right side
    8,602.00x = 101,506,978.17
  5. Step 5: Solve for x
    x = 101,506,978.17/8,602.00
  6. Step 6: Final answer
    x = 11,800.40

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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.