Home / 18,712.31-25,822.92-10,328.75

Finding the Fourth Proportional to 18,712.31, 25,822.92 and 10,328.75

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Solution

The fourth proportional to 18,712.31, 25,822.92 and 10,328.75 is: 14,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.31 : 25,822.92 = 10,328.75 : x
  2. Step 2: Convert to fraction form
    18,712.31/25,822.92 = 10,328.75/x
  3. Step 3: Cross multiply
    18,712.31x = 25,822.92 × 10,328.75
  4. Step 4: Simplify right side
    18,712.31x = 266,718,484.95
  5. Step 5: Solve for x
    x = 266,718,484.95/18,712.31
  6. Step 6: Final answer
    x = 14,253.64

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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.