Home / 8,956.36-12,359.92-5,180.38

Finding the Fourth Proportional to 8,956.36, 12,359.92 and 5,180.38

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Solution

The fourth proportional to 8,956.36, 12,359.92 and 5,180.38 is: 7,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.36 : 12,359.92 = 5,180.38 : x
  2. Step 2: Convert to fraction form
    8,956.36/12,359.92 = 5,180.38/x
  3. Step 3: Cross multiply
    8,956.36x = 12,359.92 × 5,180.38
  4. Step 4: Simplify right side
    8,956.36x = 64,029,082.37
  5. Step 5: Solve for x
    x = 64,029,082.37/8,956.36
  6. Step 6: Final answer
    x = 7,149.01

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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.