Home / 8,949.28-12,343.44-6,155.68

Finding the Fourth Proportional to 8,949.28, 12,343.44 and 6,155.68

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Solution

The fourth proportional to 8,949.28, 12,343.44 and 6,155.68 is: 8,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.28 : 12,343.44 = 6,155.68 : x
  2. Step 2: Convert to fraction form
    8,949.28/12,343.44 = 6,155.68/x
  3. Step 3: Cross multiply
    8,949.28x = 12,343.44 × 6,155.68
  4. Step 4: Simplify right side
    8,949.28x = 75,982,266.74
  5. Step 5: Solve for x
    x = 75,982,266.74/8,949.28
  6. Step 6: Final answer
    x = 8,490.32

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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.