Home / 13,247.68-18,281.28-7,279.04

Finding the Fourth Proportional to 13,247.68, 18,281.28 and 7,279.04

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Solution

The fourth proportional to 13,247.68, 18,281.28 and 7,279.04 is: 10,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.68 : 18,281.28 = 7,279.04 : x
  2. Step 2: Convert to fraction form
    13,247.68/18,281.28 = 7,279.04/x
  3. Step 3: Cross multiply
    13,247.68x = 18,281.28 × 7,279.04
  4. Step 4: Simplify right side
    13,247.68x = 133,070,168.37
  5. Step 5: Solve for x
    x = 133,070,168.37/13,247.68
  6. Step 6: Final answer
    x = 10,044.79

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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.