Home / 8,771.20-12,103.74-4,791.52

Finding the Fourth Proportional to 8,771.20, 12,103.74 and 4,791.52

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Solution

The fourth proportional to 8,771.20, 12,103.74 and 4,791.52 is: 6,612.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.20 : 12,103.74 = 4,791.52 : x
  2. Step 2: Convert to fraction form
    8,771.20/12,103.74 = 4,791.52/x
  3. Step 3: Cross multiply
    8,771.20x = 12,103.74 × 4,791.52
  4. Step 4: Simplify right side
    8,771.20x = 57,995,312.28
  5. Step 5: Solve for x
    x = 57,995,312.28/8,771.20
  6. Step 6: Final answer
    x = 6,612.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.