Home / 10,351.40-14,279.09-6,371.70

Finding the Fourth Proportional to 10,351.40, 14,279.09 and 6,371.70

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Solution

The fourth proportional to 10,351.40, 14,279.09 and 6,371.70 is: 8,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,351.40 : 14,279.09 = 6,371.70 : x
  2. Step 2: Convert to fraction form
    10,351.40/14,279.09 = 6,371.70/x
  3. Step 3: Cross multiply
    10,351.40x = 14,279.09 × 6,371.70
  4. Step 4: Simplify right side
    10,351.40x = 90,981,992.35
  5. Step 5: Solve for x
    x = 90,981,992.35/10,351.40
  6. Step 6: Final answer
    x = 8,789.35

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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.