Home / 12,652.32-18,974.43-5,987.91

Finding the Fourth Proportional to 12,652.32, 18,974.43 and 5,987.91

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Solution

The fourth proportional to 12,652.32, 18,974.43 and 5,987.91 is: 8,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652.32 : 18,974.43 = 5,987.91 : x
  2. Step 2: Convert to fraction form
    12,652.32/18,974.43 = 5,987.91/x
  3. Step 3: Cross multiply
    12,652.32x = 18,974.43 × 5,987.91
  4. Step 4: Simplify right side
    12,652.32x = 113,617,179.14
  5. Step 5: Solve for x
    x = 113,617,179.14/12,652.32
  6. Step 6: Final answer
    x = 8,979.95

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1.5x scale

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.