Home / 12,238.92-18,355.55-5,992.70

Finding the Fourth Proportional to 12,238.92, 18,355.55 and 5,992.70

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Solution

The fourth proportional to 12,238.92, 18,355.55 and 5,992.70 is: 8,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.92 : 18,355.55 = 5,992.70 : x
  2. Step 2: Convert to fraction form
    12,238.92/18,355.55 = 5,992.70/x
  3. Step 3: Cross multiply
    12,238.92x = 18,355.55 × 5,992.70
  4. Step 4: Simplify right side
    12,238.92x = 109,999,182.74
  5. Step 5: Solve for x
    x = 109,999,182.74/12,238.92
  6. Step 6: Final answer
    x = 8,987.65

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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.