Home / 18,119.42-25,005.05-10,948.32

Finding the Fourth Proportional to 18,119.42, 25,005.05 and 10,948.32

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Solution

The fourth proportional to 18,119.42, 25,005.05 and 10,948.32 is: 15,108.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.42 : 25,005.05 = 10,948.32 : x
  2. Step 2: Convert to fraction form
    18,119.42/25,005.05 = 10,948.32/x
  3. Step 3: Cross multiply
    18,119.42x = 25,005.05 × 10,948.32
  4. Step 4: Simplify right side
    18,119.42x = 273,763,234.27
  5. Step 5: Solve for x
    x = 273,763,234.27/18,119.42
  6. Step 6: Final answer
    x = 15,108.83

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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.