Home / 18,854.14-26,020.11-11,685.47

Finding the Fourth Proportional to 18,854.14, 26,020.11 and 11,685.47

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Solution

The fourth proportional to 18,854.14, 26,020.11 and 11,685.47 is: 16,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.14 : 26,020.11 = 11,685.47 : x
  2. Step 2: Convert to fraction form
    18,854.14/26,020.11 = 11,685.47/x
  3. Step 3: Cross multiply
    18,854.14x = 26,020.11 × 11,685.47
  4. Step 4: Simplify right side
    18,854.14x = 304,057,095.66
  5. Step 5: Solve for x
    x = 304,057,095.66/18,854.14
  6. Step 6: Final answer
    x = 16,126.81

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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.