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Finding the Fourth Proportional to 8,610.60, 12,899.86 and 7,232.88

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Solution

The fourth proportional to 8,610.60, 12,899.86 and 7,232.88 is: 10,835.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.60 : 12,899.86 = 7,232.88 : x
  2. Step 2: Convert to fraction form
    8,610.60/12,899.86 = 7,232.88/x
  3. Step 3: Cross multiply
    8,610.60x = 12,899.86 × 7,232.88
  4. Step 4: Simplify right side
    8,610.60x = 93,303,139.40
  5. Step 5: Solve for x
    x = 93,303,139.40/8,610.60
  6. Step 6: Final answer
    x = 10,835.85

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1.5x scale

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.