Home / 8,281.11-12,426.45-4,385.52

Finding the Fourth Proportional to 8,281.11, 12,426.45 and 4,385.52

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Solution

The fourth proportional to 8,281.11, 12,426.45 and 4,385.52 is: 6,580.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.11 : 12,426.45 = 4,385.52 : x
  2. Step 2: Convert to fraction form
    8,281.11/12,426.45 = 4,385.52/x
  3. Step 3: Cross multiply
    8,281.11x = 12,426.45 × 4,385.52
  4. Step 4: Simplify right side
    8,281.11x = 54,496,392.92
  5. Step 5: Solve for x
    x = 54,496,392.92/8,281.11
  6. Step 6: Final answer
    x = 6,580.81

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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.