Home / 18,825.08-25,983.30-10,872.12

Finding the Fourth Proportional to 18,825.08, 25,983.30 and 10,872.12

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Solution

The fourth proportional to 18,825.08, 25,983.30 and 10,872.12 is: 15,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.08 : 25,983.30 = 10,872.12 : x
  2. Step 2: Convert to fraction form
    18,825.08/25,983.30 = 10,872.12/x
  3. Step 3: Cross multiply
    18,825.08x = 25,983.30 × 10,872.12
  4. Step 4: Simplify right side
    18,825.08x = 282,493,555.60
  5. Step 5: Solve for x
    x = 282,493,555.60/18,825.08
  6. Step 6: Final answer
    x = 15,006.23

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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.