Home / 10,279.90-14,194.92-6,509.71

Finding the Fourth Proportional to 10,279.90, 14,194.92 and 6,509.71

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Solution

The fourth proportional to 10,279.90, 14,194.92 and 6,509.71 is: 8,988.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.90 : 14,194.92 = 6,509.71 : x
  2. Step 2: Convert to fraction form
    10,279.90/14,194.92 = 6,509.71/x
  3. Step 3: Cross multiply
    10,279.90x = 14,194.92 × 6,509.71
  4. Step 4: Simplify right side
    10,279.90x = 92,404,812.67
  5. Step 5: Solve for x
    x = 92,404,812.67/10,279.90
  6. Step 6: Final answer
    x = 8,988.88

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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.