Home / 18,425.11-25,426.65-10,871.53

Finding the Fourth Proportional to 18,425.11, 25,426.65 and 10,871.53

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Solution

The fourth proportional to 18,425.11, 25,426.65 and 10,871.53 is: 15,002.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.11 : 25,426.65 = 10,871.53 : x
  2. Step 2: Convert to fraction form
    18,425.11/25,426.65 = 10,871.53/x
  3. Step 3: Cross multiply
    18,425.11x = 25,426.65 × 10,871.53
  4. Step 4: Simplify right side
    18,425.11x = 276,426,588.27
  5. Step 5: Solve for x
    x = 276,426,588.27/18,425.11
  6. Step 6: Final answer
    x = 15,002.71

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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.