Home / 11,508.31-15,876.81-6,659.83

Finding the Fourth Proportional to 11,508.31, 15,876.81 and 6,659.83

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Solution

The fourth proportional to 11,508.31, 15,876.81 and 6,659.83 is: 9,187.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,508.31 : 15,876.81 = 6,659.83 : x
  2. Step 2: Convert to fraction form
    11,508.31/15,876.81 = 6,659.83/x
  3. Step 3: Cross multiply
    11,508.31x = 15,876.81 × 6,659.83
  4. Step 4: Simplify right side
    11,508.31x = 105,736,855.54
  5. Step 5: Solve for x
    x = 105,736,855.54/11,508.31
  6. Step 6: Final answer
    x = 9,187.87

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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.