Home / 18,511.09-25,545.25-10,127.59

Finding the Fourth Proportional to 18,511.09, 25,545.25 and 10,127.59

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Solution

The fourth proportional to 18,511.09, 25,545.25 and 10,127.59 is: 13,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.09 : 25,545.25 = 10,127.59 : x
  2. Step 2: Convert to fraction form
    18,511.09/25,545.25 = 10,127.59/x
  3. Step 3: Cross multiply
    18,511.09x = 25,545.25 × 10,127.59
  4. Step 4: Simplify right side
    18,511.09x = 258,711,818.45
  5. Step 5: Solve for x
    x = 258,711,818.45/18,511.09
  6. Step 6: Final answer
    x = 13,976.04

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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.