Home / 18,116.93-25,013.64-11,321.33

Finding the Fourth Proportional to 18,116.93, 25,013.64 and 11,321.33

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Solution

The fourth proportional to 18,116.93, 25,013.64 and 11,321.33 is: 15,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.93 : 25,013.64 = 11,321.33 : x
  2. Step 2: Convert to fraction form
    18,116.93/25,013.64 = 11,321.33/x
  3. Step 3: Cross multiply
    18,116.93x = 25,013.64 × 11,321.33
  4. Step 4: Simplify right side
    18,116.93x = 283,187,491.27
  5. Step 5: Solve for x
    x = 283,187,491.27/18,116.93
  6. Step 6: Final answer
    x = 15,631.10

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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.