Home / 18,302.24-25,257-9,918.74

Finding the Fourth Proportional to 18,302.24, 25,257 and 9,918.74

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Solution

The fourth proportional to 18,302.24, 25,257 and 9,918.74 is: 13,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.24 : 25,257 = 9,918.74 : x
  2. Step 2: Convert to fraction form
    18,302.24/25,257 = 9,918.74/x
  3. Step 3: Cross multiply
    18,302.24x = 25,257 × 9,918.74
  4. Step 4: Simplify right side
    18,302.24x = 250,517,616.18
  5. Step 5: Solve for x
    x = 250,517,616.18/18,302.24
  6. Step 6: Final answer
    x = 13,687.81

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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.