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Finding the Fourth Proportional to 9,118.73, 13,678.10 and 7,041.77

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Solution

The fourth proportional to 9,118.73, 13,678.10 and 7,041.77 is: 10,562.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.73 : 13,678.10 = 7,041.77 : x
  2. Step 2: Convert to fraction form
    9,118.73/13,678.10 = 7,041.77/x
  3. Step 3: Cross multiply
    9,118.73x = 13,678.10 × 7,041.77
  4. Step 4: Simplify right side
    9,118.73x = 96,318,034.24
  5. Step 5: Solve for x
    x = 96,318,034.24/9,118.73
  6. Step 6: Final answer
    x = 10,562.66

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Similar ratio
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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.