Home / 8,254.42-12,381.60-5,486.50

Finding the Fourth Proportional to 8,254.42, 12,381.60 and 5,486.50

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Solution

The fourth proportional to 8,254.42, 12,381.60 and 5,486.50 is: 8,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.42 : 12,381.60 = 5,486.50 : x
  2. Step 2: Convert to fraction form
    8,254.42/12,381.60 = 5,486.50/x
  3. Step 3: Cross multiply
    8,254.42x = 12,381.60 × 5,486.50
  4. Step 4: Simplify right side
    8,254.42x = 67,931,648.40
  5. Step 5: Solve for x
    x = 67,931,648.40/8,254.42
  6. Step 6: Final answer
    x = 8,229.73

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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.