Home / 8,432.30-12,641.58-3,164.35

Finding the Fourth Proportional to 8,432.30, 12,641.58 and 3,164.35

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Solution

The fourth proportional to 8,432.30, 12,641.58 and 3,164.35 is: 4,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.30 : 12,641.58 = 3,164.35 : x
  2. Step 2: Convert to fraction form
    8,432.30/12,641.58 = 3,164.35/x
  3. Step 3: Cross multiply
    8,432.30x = 12,641.58 × 3,164.35
  4. Step 4: Simplify right side
    8,432.30x = 40,002,383.67
  5. Step 5: Solve for x
    x = 40,002,383.67/8,432.30
  6. Step 6: Final answer
    x = 4,743.95

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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.