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Finding the Fourth Proportional to 9,418.61, 14,149.94 and 8,886.63

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Solution

The fourth proportional to 9,418.61, 14,149.94 and 8,886.63 is: 13,350.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.61 : 14,149.94 = 8,886.63 : x
  2. Step 2: Convert to fraction form
    9,418.61/14,149.94 = 8,886.63/x
  3. Step 3: Cross multiply
    9,418.61x = 14,149.94 × 8,886.63
  4. Step 4: Simplify right side
    9,418.61x = 125,745,236.87
  5. Step 5: Solve for x
    x = 125,745,236.87/9,418.61
  6. Step 6: Final answer
    x = 13,350.73

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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.