Home / 10,279.74-14,191.38-7,130.46

Finding the Fourth Proportional to 10,279.74, 14,191.38 and 7,130.46

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Solution

The fourth proportional to 10,279.74, 14,191.38 and 7,130.46 is: 9,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.74 : 14,191.38 = 7,130.46 : x
  2. Step 2: Convert to fraction form
    10,279.74/14,191.38 = 7,130.46/x
  3. Step 3: Cross multiply
    10,279.74x = 14,191.38 × 7,130.46
  4. Step 4: Simplify right side
    10,279.74x = 101,191,067.43
  5. Step 5: Solve for x
    x = 101,191,067.43/10,279.74
  6. Step 6: Final answer
    x = 9,843.74

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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.