Home / 11,579.52-15,974.40-6,860.16

Finding the Fourth Proportional to 11,579.52, 15,974.40 and 6,860.16

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Solution

The fourth proportional to 11,579.52, 15,974.40 and 6,860.16 is: 9,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.52 : 15,974.40 = 6,860.16 : x
  2. Step 2: Convert to fraction form
    11,579.52/15,974.40 = 6,860.16/x
  3. Step 3: Cross multiply
    11,579.52x = 15,974.40 × 6,860.16
  4. Step 4: Simplify right side
    11,579.52x = 109,586,939.90
  5. Step 5: Solve for x
    x = 109,586,939.90/11,579.52
  6. Step 6: Final answer
    x = 9,463.86

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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.