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Finding the Fourth Proportional to 8,652.32, 12,990.32 and 8,548.64

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Solution

The fourth proportional to 8,652.32, 12,990.32 and 8,548.64 is: 12,834.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.32 : 12,990.32 = 8,548.64 : x
  2. Step 2: Convert to fraction form
    8,652.32/12,990.32 = 8,548.64/x
  3. Step 3: Cross multiply
    8,652.32x = 12,990.32 × 8,548.64
  4. Step 4: Simplify right side
    8,652.32x = 111,049,569.16
  5. Step 5: Solve for x
    x = 111,049,569.16/8,652.32
  6. Step 6: Final answer
    x = 12,834.66

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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.