Home / 8,961.20-12,367.65-5,423.73

Finding the Fourth Proportional to 8,961.20, 12,367.65 and 5,423.73

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Solution

The fourth proportional to 8,961.20, 12,367.65 and 5,423.73 is: 7,485.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.20 : 12,367.65 = 5,423.73 : x
  2. Step 2: Convert to fraction form
    8,961.20/12,367.65 = 5,423.73/x
  3. Step 3: Cross multiply
    8,961.20x = 12,367.65 × 5,423.73
  4. Step 4: Simplify right side
    8,961.20x = 67,078,768.29
  5. Step 5: Solve for x
    x = 67,078,768.29/8,961.20
  6. Step 6: Final answer
    x = 7,485.47

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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.