Home / 18,218.57-25,153.24-14,869.38

Finding the Fourth Proportional to 18,218.57, 25,153.24 and 14,869.38

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Solution

The fourth proportional to 18,218.57, 25,153.24 and 14,869.38 is: 20,529.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.57 : 25,153.24 = 14,869.38 : x
  2. Step 2: Convert to fraction form
    18,218.57/25,153.24 = 14,869.38/x
  3. Step 3: Cross multiply
    18,218.57x = 25,153.24 × 14,869.38
  4. Step 4: Simplify right side
    18,218.57x = 374,012,952.29
  5. Step 5: Solve for x
    x = 374,012,952.29/18,218.57
  6. Step 6: Final answer
    x = 20,529.21

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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.