Home / 11,579.19-15,979.05-6,474.68

Finding the Fourth Proportional to 11,579.19, 15,979.05 and 6,474.68

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Solution

The fourth proportional to 11,579.19, 15,979.05 and 6,474.68 is: 8,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.19 : 15,979.05 = 6,474.68 : x
  2. Step 2: Convert to fraction form
    11,579.19/15,979.05 = 6,474.68/x
  3. Step 3: Cross multiply
    11,579.19x = 15,979.05 × 6,474.68
  4. Step 4: Simplify right side
    11,579.19x = 103,459,235.45
  5. Step 5: Solve for x
    x = 103,459,235.45/11,579.19
  6. Step 6: Final answer
    x = 8,934.93

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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.