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Finding the Fourth Proportional to 9,387.66, 14,014.23 and 8,731.56

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Solution

The fourth proportional to 9,387.66, 14,014.23 and 8,731.56 is: 13,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.66 : 14,014.23 = 8,731.56 : x
  2. Step 2: Convert to fraction form
    9,387.66/14,014.23 = 8,731.56/x
  3. Step 3: Cross multiply
    9,387.66x = 14,014.23 × 8,731.56
  4. Step 4: Simplify right side
    9,387.66x = 122,366,090.10
  5. Step 5: Solve for x
    x = 122,366,090.10/9,387.66
  6. Step 6: Final answer
    x = 13,034.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.