Home / 8,954.20-12,353.92-5,176.87

Finding the Fourth Proportional to 8,954.20, 12,353.92 and 5,176.87

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Solution

The fourth proportional to 8,954.20, 12,353.92 and 5,176.87 is: 7,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.20 : 12,353.92 = 5,176.87 : x
  2. Step 2: Convert to fraction form
    8,954.20/12,353.92 = 5,176.87/x
  3. Step 3: Cross multiply
    8,954.20x = 12,353.92 × 5,176.87
  4. Step 4: Simplify right side
    8,954.20x = 63,954,563.12
  5. Step 5: Solve for x
    x = 63,954,563.12/8,954.20
  6. Step 6: Final answer
    x = 7,142.41

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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.