Home / 18,126.90-25,015.37-10,168.65

Finding the Fourth Proportional to 18,126.90, 25,015.37 and 10,168.65

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Solution

The fourth proportional to 18,126.90, 25,015.37 and 10,168.65 is: 14,032.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.90 : 25,015.37 = 10,168.65 : x
  2. Step 2: Convert to fraction form
    18,126.90/25,015.37 = 10,168.65/x
  3. Step 3: Cross multiply
    18,126.90x = 25,015.37 × 10,168.65
  4. Step 4: Simplify right side
    18,126.90x = 254,372,491.31
  5. Step 5: Solve for x
    x = 254,372,491.31/18,126.90
  6. Step 6: Final answer
    x = 14,032.87

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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.