Home / 18,305.22-27,455.40-5,158.65

Finding the Fourth Proportional to 18,305.22, 27,455.40 and 5,158.65

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Solution

The fourth proportional to 18,305.22, 27,455.40 and 5,158.65 is: 7,737.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.22 : 27,455.40 = 5,158.65 : x
  2. Step 2: Convert to fraction form
    18,305.22/27,455.40 = 5,158.65/x
  3. Step 3: Cross multiply
    18,305.22x = 27,455.40 × 5,158.65
  4. Step 4: Simplify right side
    18,305.22x = 141,632,799.21
  5. Step 5: Solve for x
    x = 141,632,799.21/18,305.22
  6. Step 6: Final answer
    x = 7,737.29

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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.