Home / 7,402.14-11,097.72-4,479.78

Finding the Fourth Proportional to 7,402.14, 11,097.72 and 4,479.78

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Solution

The fourth proportional to 7,402.14, 11,097.72 and 4,479.78 is: 6,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.14 : 11,097.72 = 4,479.78 : x
  2. Step 2: Convert to fraction form
    7,402.14/11,097.72 = 4,479.78/x
  3. Step 3: Cross multiply
    7,402.14x = 11,097.72 × 4,479.78
  4. Step 4: Simplify right side
    7,402.14x = 49,715,344.10
  5. Step 5: Solve for x
    x = 49,715,344.10/7,402.14
  6. Step 6: Final answer
    x = 6,716.35

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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.