Home / 10,854.52-14,979.88-6,139.24

Finding the Fourth Proportional to 10,854.52, 14,979.88 and 6,139.24

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Solution

The fourth proportional to 10,854.52, 14,979.88 and 6,139.24 is: 8,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,854.52 : 14,979.88 = 6,139.24 : x
  2. Step 2: Convert to fraction form
    10,854.52/14,979.88 = 6,139.24/x
  3. Step 3: Cross multiply
    10,854.52x = 14,979.88 × 6,139.24
  4. Step 4: Simplify right side
    10,854.52x = 91,965,078.49
  5. Step 5: Solve for x
    x = 91,965,078.49/10,854.52
  6. Step 6: Final answer
    x = 8,472.51

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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.