Home / 8,766.40-13,138.08-4,150.72

Finding the Fourth Proportional to 8,766.40, 13,138.08 and 4,150.72

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Solution

The fourth proportional to 8,766.40, 13,138.08 and 4,150.72 is: 6,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.40 : 13,138.08 = 4,150.72 : x
  2. Step 2: Convert to fraction form
    8,766.40/13,138.08 = 4,150.72/x
  3. Step 3: Cross multiply
    8,766.40x = 13,138.08 × 4,150.72
  4. Step 4: Simplify right side
    8,766.40x = 54,532,491.42
  5. Step 5: Solve for x
    x = 54,532,491.42/8,766.40
  6. Step 6: Final answer
    x = 6,220.63

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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.