Home / 18,126.36-25,017.18-10,171.80

Finding the Fourth Proportional to 18,126.36, 25,017.18 and 10,171.80

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Solution

The fourth proportional to 18,126.36, 25,017.18 and 10,171.80 is: 14,038.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.36 : 25,017.18 = 10,171.80 : x
  2. Step 2: Convert to fraction form
    18,126.36/25,017.18 = 10,171.80/x
  3. Step 3: Cross multiply
    18,126.36x = 25,017.18 × 10,171.80
  4. Step 4: Simplify right side
    18,126.36x = 254,469,751.52
  5. Step 5: Solve for x
    x = 254,469,751.52/18,126.36
  6. Step 6: Final answer
    x = 14,038.66

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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.