Home / 18,211.81-27,319.24-5,064.30

Finding the Fourth Proportional to 18,211.81, 27,319.24 and 5,064.30

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Solution

The fourth proportional to 18,211.81, 27,319.24 and 5,064.30 is: 7,596.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.81 : 27,319.24 = 5,064.30 : x
  2. Step 2: Convert to fraction form
    18,211.81/27,319.24 = 5,064.30/x
  3. Step 3: Cross multiply
    18,211.81x = 27,319.24 × 5,064.30
  4. Step 4: Simplify right side
    18,211.81x = 138,352,827.13
  5. Step 5: Solve for x
    x = 138,352,827.13/18,211.81
  6. Step 6: Final answer
    x = 7,596.87

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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.