Home / 8,184.36-12,275.28-2,989

Finding the Fourth Proportional to 8,184.36, 12,275.28 and 2,989

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Solution

The fourth proportional to 8,184.36, 12,275.28 and 2,989 is: 4,483.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,184.36 : 12,275.28 = 2,989 : x
  2. Step 2: Convert to fraction form
    8,184.36/12,275.28 = 2,989/x
  3. Step 3: Cross multiply
    8,184.36x = 12,275.28 × 2,989
  4. Step 4: Simplify right side
    8,184.36x = 36,690,811.92
  5. Step 5: Solve for x
    x = 36,690,811.92/8,184.36
  6. Step 6: Final answer
    x = 4,483.04

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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.