Home / 12,126.28-16,712.52-8,977

Finding the Fourth Proportional to 12,126.28, 16,712.52 and 8,977

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Solution

The fourth proportional to 12,126.28, 16,712.52 and 8,977 is: 12,372.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.28 : 16,712.52 = 8,977 : x
  2. Step 2: Convert to fraction form
    12,126.28/16,712.52 = 8,977/x
  3. Step 3: Cross multiply
    12,126.28x = 16,712.52 × 8,977
  4. Step 4: Simplify right side
    12,126.28x = 150,028,292.04
  5. Step 5: Solve for x
    x = 150,028,292.04/12,126.28
  6. Step 6: Final answer
    x = 12,372.16

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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.