Home / 18,712.20-25,822.82-10,328.68

Finding the Fourth Proportional to 18,712.20, 25,822.82 and 10,328.68

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Solution

The fourth proportional to 18,712.20, 25,822.82 and 10,328.68 is: 14,253.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.20 : 25,822.82 = 10,328.68 : x
  2. Step 2: Convert to fraction form
    18,712.20/25,822.82 = 10,328.68/x
  3. Step 3: Cross multiply
    18,712.20x = 25,822.82 × 10,328.68
  4. Step 4: Simplify right side
    18,712.20x = 266,715,644.48
  5. Step 5: Solve for x
    x = 266,715,644.48/18,712.20
  6. Step 6: Final answer
    x = 14,253.57

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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.