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Finding the Fourth Proportional to 8,659.74, 13,000.77 and 7,435.02

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Solution

The fourth proportional to 8,659.74, 13,000.77 and 7,435.02 is: 11,162.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659.74 : 13,000.77 = 7,435.02 : x
  2. Step 2: Convert to fraction form
    8,659.74/13,000.77 = 7,435.02/x
  3. Step 3: Cross multiply
    8,659.74x = 13,000.77 × 7,435.02
  4. Step 4: Simplify right side
    8,659.74x = 96,660,984.97
  5. Step 5: Solve for x
    x = 96,660,984.97/8,659.74
  6. Step 6: Final answer
    x = 11,162.11

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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.