Home / 18,118.29-25,001.55-10,158.83

Finding the Fourth Proportional to 18,118.29, 25,001.55 and 10,158.83

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Solution

The fourth proportional to 18,118.29, 25,001.55 and 10,158.83 is: 14,018.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.29 : 25,001.55 = 10,158.83 : x
  2. Step 2: Convert to fraction form
    18,118.29/25,001.55 = 10,158.83/x
  3. Step 3: Cross multiply
    18,118.29x = 25,001.55 × 10,158.83
  4. Step 4: Simplify right side
    18,118.29x = 253,986,371.18
  5. Step 5: Solve for x
    x = 253,986,371.18/18,118.29
  6. Step 6: Final answer
    x = 14,018.23

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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.