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Finding the Fourth Proportional to 9,329.86, 12,862.32 and 6,672.64

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Solution

The fourth proportional to 9,329.86, 12,862.32 and 6,672.64 is: 9,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.86 : 12,862.32 = 6,672.64 : x
  2. Step 2: Convert to fraction form
    9,329.86/12,862.32 = 6,672.64/x
  3. Step 3: Cross multiply
    9,329.86x = 12,862.32 × 6,672.64
  4. Step 4: Simplify right side
    9,329.86x = 85,825,630.92
  5. Step 5: Solve for x
    x = 85,825,630.92/9,329.86
  6. Step 6: Final answer
    x = 9,199.03

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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.