Home / 18,821.70-25,969.41-11,266.83

Finding the Fourth Proportional to 18,821.70, 25,969.41 and 11,266.83

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Solution

The fourth proportional to 18,821.70, 25,969.41 and 11,266.83 is: 15,545.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.70 : 25,969.41 = 11,266.83 : x
  2. Step 2: Convert to fraction form
    18,821.70/25,969.41 = 11,266.83/x
  3. Step 3: Cross multiply
    18,821.70x = 25,969.41 × 11,266.83
  4. Step 4: Simplify right side
    18,821.70x = 292,592,927.67
  5. Step 5: Solve for x
    x = 292,592,927.67/18,821.70
  6. Step 6: Final answer
    x = 15,545.51

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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.