Home / 12,159.28-16,787.04-7,974.82

Finding the Fourth Proportional to 12,159.28, 16,787.04 and 7,974.82

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Solution

The fourth proportional to 12,159.28, 16,787.04 and 7,974.82 is: 11,010.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.28 : 16,787.04 = 7,974.82 : x
  2. Step 2: Convert to fraction form
    12,159.28/16,787.04 = 7,974.82/x
  3. Step 3: Cross multiply
    12,159.28x = 16,787.04 × 7,974.82
  4. Step 4: Simplify right side
    12,159.28x = 133,873,622.33
  5. Step 5: Solve for x
    x = 133,873,622.33/12,159.28
  6. Step 6: Final answer
    x = 11,010.00

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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.