Home / 18,932.70-26,129.64-10,869.54

Finding the Fourth Proportional to 18,932.70, 26,129.64 and 10,869.54

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Solution

The fourth proportional to 18,932.70, 26,129.64 and 10,869.54 is: 15,001.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.70 : 26,129.64 = 10,869.54 : x
  2. Step 2: Convert to fraction form
    18,932.70/26,129.64 = 10,869.54/x
  3. Step 3: Cross multiply
    18,932.70x = 26,129.64 × 10,869.54
  4. Step 4: Simplify right side
    18,932.70x = 284,017,167.17
  5. Step 5: Solve for x
    x = 284,017,167.17/18,932.70
  6. Step 6: Final answer
    x = 15,001.41

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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.