Home / 9,388.78-14,081.70-3,148.90

Finding the Fourth Proportional to 9,388.78, 14,081.70 and 3,148.90

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Solution

The fourth proportional to 9,388.78, 14,081.70 and 3,148.90 is: 4,722.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,388.78 : 14,081.70 = 3,148.90 : x
  2. Step 2: Convert to fraction form
    9,388.78/14,081.70 = 3,148.90/x
  3. Step 3: Cross multiply
    9,388.78x = 14,081.70 × 3,148.90
  4. Step 4: Simplify right side
    9,388.78x = 44,341,865.13
  5. Step 5: Solve for x
    x = 44,341,865.13/9,388.78
  6. Step 6: Final answer
    x = 4,722.86

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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.