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Finding the Fourth Proportional to 8,693.52, 11,999.52 and 7,125.36

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Solution

The fourth proportional to 8,693.52, 11,999.52 and 7,125.36 is: 9,835.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.52 : 11,999.52 = 7,125.36 : x
  2. Step 2: Convert to fraction form
    8,693.52/11,999.52 = 7,125.36/x
  3. Step 3: Cross multiply
    8,693.52x = 11,999.52 × 7,125.36
  4. Step 4: Simplify right side
    8,693.52x = 85,500,899.83
  5. Step 5: Solve for x
    x = 85,500,899.83/8,693.52
  6. Step 6: Final answer
    x = 9,835.02

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1.5x scale

Why These Related Problems?

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