Home / 18,122.42-25,009.18-10,951.34

Finding the Fourth Proportional to 18,122.42, 25,009.18 and 10,951.34

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Solution

The fourth proportional to 18,122.42, 25,009.18 and 10,951.34 is: 15,112.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.42 : 25,009.18 = 10,951.34 : x
  2. Step 2: Convert to fraction form
    18,122.42/25,009.18 = 10,951.34/x
  3. Step 3: Cross multiply
    18,122.42x = 25,009.18 × 10,951.34
  4. Step 4: Simplify right side
    18,122.42x = 273,884,033.30
  5. Step 5: Solve for x
    x = 273,884,033.30/18,122.42
  6. Step 6: Final answer
    x = 15,112.99

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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.