Home / 13,247.91-18,282.24-7,279.71

Finding the Fourth Proportional to 13,247.91, 18,282.24 and 7,279.71

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Solution

The fourth proportional to 13,247.91, 18,282.24 and 7,279.71 is: 10,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.91 : 18,282.24 = 7,279.71 : x
  2. Step 2: Convert to fraction form
    13,247.91/18,282.24 = 7,279.71/x
  3. Step 3: Cross multiply
    13,247.91x = 18,282.24 × 7,279.71
  4. Step 4: Simplify right side
    13,247.91x = 133,089,405.35
  5. Step 5: Solve for x
    x = 133,089,405.35/13,247.91
  6. Step 6: Final answer
    x = 10,046.07

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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.