Home / 10,071.44-15,074.81-5,379.72

Finding the Fourth Proportional to 10,071.44, 15,074.81 and 5,379.72

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Solution

The fourth proportional to 10,071.44, 15,074.81 and 5,379.72 is: 8,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,071.44 : 15,074.81 = 5,379.72 : x
  2. Step 2: Convert to fraction form
    10,071.44/15,074.81 = 5,379.72/x
  3. Step 3: Cross multiply
    10,071.44x = 15,074.81 × 5,379.72
  4. Step 4: Simplify right side
    10,071.44x = 81,098,193.60
  5. Step 5: Solve for x
    x = 81,098,193.60/10,071.44
  6. Step 6: Final answer
    x = 8,052.29

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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.