Home / 8,256.90-12,385.75-3,325.87

Finding the Fourth Proportional to 8,256.90, 12,385.75 and 3,325.87

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Solution

The fourth proportional to 8,256.90, 12,385.75 and 3,325.87 is: 4,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.90 : 12,385.75 = 3,325.87 : x
  2. Step 2: Convert to fraction form
    8,256.90/12,385.75 = 3,325.87/x
  3. Step 3: Cross multiply
    8,256.90x = 12,385.75 × 3,325.87
  4. Step 4: Simplify right side
    8,256.90x = 41,193,402.67
  5. Step 5: Solve for x
    x = 41,193,402.67/8,256.90
  6. Step 6: Final answer
    x = 4,988.97

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1.5x scale

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.