Home / 13,979.08-20,946.66-6,581.80

Finding the Fourth Proportional to 13,979.08, 20,946.66 and 6,581.80

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Solution

The fourth proportional to 13,979.08, 20,946.66 and 6,581.80 is: 9,862.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.08 : 20,946.66 = 6,581.80 : x
  2. Step 2: Convert to fraction form
    13,979.08/20,946.66 = 6,581.80/x
  3. Step 3: Cross multiply
    13,979.08x = 20,946.66 × 6,581.80
  4. Step 4: Simplify right side
    13,979.08x = 137,866,726.79
  5. Step 5: Solve for x
    x = 137,866,726.79/13,979.08
  6. Step 6: Final answer
    x = 9,862.36

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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.