Home / 18,259.97-27,390.14-5,779.76

Finding the Fourth Proportional to 18,259.97, 27,390.14 and 5,779.76

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Solution

The fourth proportional to 18,259.97, 27,390.14 and 5,779.76 is: 8,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.97 : 27,390.14 = 5,779.76 : x
  2. Step 2: Convert to fraction form
    18,259.97/27,390.14 = 5,779.76/x
  3. Step 3: Cross multiply
    18,259.97x = 27,390.14 × 5,779.76
  4. Step 4: Simplify right side
    18,259.97x = 158,308,435.57
  5. Step 5: Solve for x
    x = 158,308,435.57/18,259.97
  6. Step 6: Final answer
    x = 8,669.70

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Similar ratio
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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.