Home / 18,321.08-27,482.56-5,174.40

Finding the Fourth Proportional to 18,321.08, 27,482.56 and 5,174.40

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Solution

The fourth proportional to 18,321.08, 27,482.56 and 5,174.40 is: 7,761.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.08 : 27,482.56 = 5,174.40 : x
  2. Step 2: Convert to fraction form
    18,321.08/27,482.56 = 5,174.40/x
  3. Step 3: Cross multiply
    18,321.08x = 27,482.56 × 5,174.40
  4. Step 4: Simplify right side
    18,321.08x = 142,205,758.46
  5. Step 5: Solve for x
    x = 142,205,758.46/18,321.08
  6. Step 6: Final answer
    x = 7,761.87

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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.