Home / 13,763.23-18,982.68-9,279.88

Finding the Fourth Proportional to 13,763.23, 18,982.68 and 9,279.88

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Solution

The fourth proportional to 13,763.23, 18,982.68 and 9,279.88 is: 12,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.23 : 18,982.68 = 9,279.88 : x
  2. Step 2: Convert to fraction form
    13,763.23/18,982.68 = 9,279.88/x
  3. Step 3: Cross multiply
    13,763.23x = 18,982.68 × 9,279.88
  4. Step 4: Simplify right side
    13,763.23x = 176,156,897.57
  5. Step 5: Solve for x
    x = 176,156,897.57/13,763.23
  6. Step 6: Final answer
    x = 12,799.10

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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.