Home / 9,279.47-13,900.64-5,579.66

Finding the Fourth Proportional to 9,279.47, 13,900.64 and 5,579.66

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Solution

The fourth proportional to 9,279.47, 13,900.64 and 5,579.66 is: 8,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.47 : 13,900.64 = 5,579.66 : x
  2. Step 2: Convert to fraction form
    9,279.47/13,900.64 = 5,579.66/x
  3. Step 3: Cross multiply
    9,279.47x = 13,900.64 × 5,579.66
  4. Step 4: Simplify right side
    9,279.47x = 77,560,747.58
  5. Step 5: Solve for x
    x = 77,560,747.58/9,279.47
  6. Step 6: Final answer
    x = 8,358.32

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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.