Home / 18,279.06-27,420-5,799.79

Finding the Fourth Proportional to 18,279.06, 27,420 and 5,799.79

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Solution

The fourth proportional to 18,279.06, 27,420 and 5,799.79 is: 8,700.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.06 : 27,420 = 5,799.79 : x
  2. Step 2: Convert to fraction form
    18,279.06/27,420 = 5,799.79/x
  3. Step 3: Cross multiply
    18,279.06x = 27,420 × 5,799.79
  4. Step 4: Simplify right side
    18,279.06x = 159,030,241.80
  5. Step 5: Solve for x
    x = 159,030,241.80/18,279.06
  6. Step 6: Final answer
    x = 8,700.13

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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.