Home / 8,311.63-12,454.18-5,817.55

Finding the Fourth Proportional to 8,311.63, 12,454.18 and 5,817.55

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Solution

The fourth proportional to 8,311.63, 12,454.18 and 5,817.55 is: 8,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.63 : 12,454.18 = 5,817.55 : x
  2. Step 2: Convert to fraction form
    8,311.63/12,454.18 = 5,817.55/x
  3. Step 3: Cross multiply
    8,311.63x = 12,454.18 × 5,817.55
  4. Step 4: Simplify right side
    8,311.63x = 72,452,814.86
  5. Step 5: Solve for x
    x = 72,452,814.86/8,311.63
  6. Step 6: Final answer
    x = 8,717.04

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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.