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Finding the Fourth Proportional to 9,118.79, 13,678.19 and 7,041.83

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Solution

The fourth proportional to 9,118.79, 13,678.19 and 7,041.83 is: 10,562.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.79 : 13,678.19 = 7,041.83 : x
  2. Step 2: Convert to fraction form
    9,118.79/13,678.19 = 7,041.83/x
  3. Step 3: Cross multiply
    9,118.79x = 13,678.19 × 7,041.83
  4. Step 4: Simplify right side
    9,118.79x = 96,319,401.59
  5. Step 5: Solve for x
    x = 96,319,401.59/9,118.79
  6. Step 6: Final answer
    x = 10,562.74

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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.