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Finding the Fourth Proportional to 9,342.62, 13,979.33 and 7,488.12

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Solution

The fourth proportional to 9,342.62, 13,979.33 and 7,488.12 is: 11,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,342.62 : 13,979.33 = 7,488.12 : x
  2. Step 2: Convert to fraction form
    9,342.62/13,979.33 = 7,488.12/x
  3. Step 3: Cross multiply
    9,342.62x = 13,979.33 × 7,488.12
  4. Step 4: Simplify right side
    9,342.62x = 104,678,900.56
  5. Step 5: Solve for x
    x = 104,678,900.56/9,342.62
  6. Step 6: Final answer
    x = 11,204.45

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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.