Home / 8,948.96-12,350.90-6,439.38

Finding the Fourth Proportional to 8,948.96, 12,350.90 and 6,439.38

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Solution

The fourth proportional to 8,948.96, 12,350.90 and 6,439.38 is: 8,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.96 : 12,350.90 = 6,439.38 : x
  2. Step 2: Convert to fraction form
    8,948.96/12,350.90 = 6,439.38/x
  3. Step 3: Cross multiply
    8,948.96x = 12,350.90 × 6,439.38
  4. Step 4: Simplify right side
    8,948.96x = 79,532,138.44
  5. Step 5: Solve for x
    x = 79,532,138.44/8,948.96
  6. Step 6: Final answer
    x = 8,887.31

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1.5x scale

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.