Home / 8,263.38-12,397.36-3,822.40

Finding the Fourth Proportional to 8,263.38, 12,397.36 and 3,822.40

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Solution

The fourth proportional to 8,263.38, 12,397.36 and 3,822.40 is: 5,734.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,263.38 : 12,397.36 = 3,822.40 : x
  2. Step 2: Convert to fraction form
    8,263.38/12,397.36 = 3,822.40/x
  3. Step 3: Cross multiply
    8,263.38x = 12,397.36 × 3,822.40
  4. Step 4: Simplify right side
    8,263.38x = 47,387,668.86
  5. Step 5: Solve for x
    x = 47,387,668.86/8,263.38
  6. Step 6: Final answer
    x = 5,734.66

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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.