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Finding the Fourth Proportional to 9,669.12, 14,522.88 and 8,281.92

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Solution

The fourth proportional to 9,669.12, 14,522.88 and 8,281.92 is: 12,439.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,669.12 : 14,522.88 = 8,281.92 : x
  2. Step 2: Convert to fraction form
    9,669.12/14,522.88 = 8,281.92/x
  3. Step 3: Cross multiply
    9,669.12x = 14,522.88 × 8,281.92
  4. Step 4: Simplify right side
    9,669.12x = 120,277,330.33
  5. Step 5: Solve for x
    x = 120,277,330.33/9,669.12
  6. Step 6: Final answer
    x = 12,439.33

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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.