Home / 15,919.77-21,976.39-11,670.83

Finding the Fourth Proportional to 15,919.77, 21,976.39 and 11,670.83

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Solution

The fourth proportional to 15,919.77, 21,976.39 and 11,670.83 is: 16,110.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.77 : 21,976.39 = 11,670.83 : x
  2. Step 2: Convert to fraction form
    15,919.77/21,976.39 = 11,670.83/x
  3. Step 3: Cross multiply
    15,919.77x = 21,976.39 × 11,670.83
  4. Step 4: Simplify right side
    15,919.77x = 256,482,789.61
  5. Step 5: Solve for x
    x = 256,482,789.61/15,919.77
  6. Step 6: Final answer
    x = 16,110.97

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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.