Home / 13,247.61-18,282.12-7,279.71

Finding the Fourth Proportional to 13,247.61, 18,282.12 and 7,279.71

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Solution

The fourth proportional to 13,247.61, 18,282.12 and 7,279.71 is: 10,046.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.61 : 18,282.12 = 7,279.71 : x
  2. Step 2: Convert to fraction form
    13,247.61/18,282.12 = 7,279.71/x
  3. Step 3: Cross multiply
    13,247.61x = 18,282.12 × 7,279.71
  4. Step 4: Simplify right side
    13,247.61x = 133,088,531.79
  5. Step 5: Solve for x
    x = 133,088,531.79/13,247.61
  6. Step 6: Final answer
    x = 10,046.23

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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.