Home / 8,257.11-11,394.80-4,720.39

Finding the Fourth Proportional to 8,257.11, 11,394.80 and 4,720.39

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Solution

The fourth proportional to 8,257.11, 11,394.80 and 4,720.39 is: 6,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.11 : 11,394.80 = 4,720.39 : x
  2. Step 2: Convert to fraction form
    8,257.11/11,394.80 = 4,720.39/x
  3. Step 3: Cross multiply
    8,257.11x = 11,394.80 × 4,720.39
  4. Step 4: Simplify right side
    8,257.11x = 53,787,899.97
  5. Step 5: Solve for x
    x = 53,787,899.97/8,257.11
  6. Step 6: Final answer
    x = 6,514.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.