Home / 9,375.87-12,949.34-6,386.52

Finding the Fourth Proportional to 9,375.87, 12,949.34 and 6,386.52

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Solution

The fourth proportional to 9,375.87, 12,949.34 and 6,386.52 is: 8,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.87 : 12,949.34 = 6,386.52 : x
  2. Step 2: Convert to fraction form
    9,375.87/12,949.34 = 6,386.52/x
  3. Step 3: Cross multiply
    9,375.87x = 12,949.34 × 6,386.52
  4. Step 4: Simplify right side
    9,375.87x = 82,701,186.96
  5. Step 5: Solve for x
    x = 82,701,186.96/9,375.87
  6. Step 6: Final answer
    x = 8,820.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.