Home / 8,271.45-12,400.20-3,587.93

Finding the Fourth Proportional to 8,271.45, 12,400.20 and 3,587.93

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Solution

The fourth proportional to 8,271.45, 12,400.20 and 3,587.93 is: 5,378.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.45 : 12,400.20 = 3,587.93 : x
  2. Step 2: Convert to fraction form
    8,271.45/12,400.20 = 3,587.93/x
  3. Step 3: Cross multiply
    8,271.45x = 12,400.20 × 3,587.93
  4. Step 4: Simplify right side
    8,271.45x = 44,491,076.31
  5. Step 5: Solve for x
    x = 44,491,076.31/8,271.45
  6. Step 6: Final answer
    x = 5,378.87

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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.