Home / 7,159.20-10,717.20-6,381.60

Finding the Fourth Proportional to 7,159.20, 10,717.20 and 6,381.60

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Solution

The fourth proportional to 7,159.20, 10,717.20 and 6,381.60 is: 9,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.20 : 10,717.20 = 6,381.60 : x
  2. Step 2: Convert to fraction form
    7,159.20/10,717.20 = 6,381.60/x
  3. Step 3: Cross multiply
    7,159.20x = 10,717.20 × 6,381.60
  4. Step 4: Simplify right side
    7,159.20x = 68,392,883.52
  5. Step 5: Solve for x
    x = 68,392,883.52/7,159.20
  6. Step 6: Final answer
    x = 9,553.15

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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.