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Finding the Fourth Proportional to 8,602.52, 12,911.70 and 5,322.02

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Solution

The fourth proportional to 8,602.52, 12,911.70 and 5,322.02 is: 7,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,602.52 : 12,911.70 = 5,322.02 : x
  2. Step 2: Convert to fraction form
    8,602.52/12,911.70 = 5,322.02/x
  3. Step 3: Cross multiply
    8,602.52x = 12,911.70 × 5,322.02
  4. Step 4: Simplify right side
    8,602.52x = 68,716,325.63
  5. Step 5: Solve for x
    x = 68,716,325.63/8,602.52
  6. Step 6: Final answer
    x = 7,987.93

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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.