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Finding the Fourth Proportional to 8,829.44, 12,157.92 and 8,635.04

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Solution

The fourth proportional to 8,829.44, 12,157.92 and 8,635.04 is: 11,890.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,829.44 : 12,157.92 = 8,635.04 : x
  2. Step 2: Convert to fraction form
    8,829.44/12,157.92 = 8,635.04/x
  3. Step 3: Cross multiply
    8,829.44x = 12,157.92 × 8,635.04
  4. Step 4: Simplify right side
    8,829.44x = 104,984,125.52
  5. Step 5: Solve for x
    x = 104,984,125.52/8,829.44
  6. Step 6: Final answer
    x = 11,890.24

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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.