Home / 18,301.50-25,256.07-9,918

Finding the Fourth Proportional to 18,301.50, 25,256.07 and 9,918

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Solution

The fourth proportional to 18,301.50, 25,256.07 and 9,918 is: 13,686.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.50 : 25,256.07 = 9,918 : x
  2. Step 2: Convert to fraction form
    18,301.50/25,256.07 = 9,918/x
  3. Step 3: Cross multiply
    18,301.50x = 25,256.07 × 9,918
  4. Step 4: Simplify right side
    18,301.50x = 250,489,702.26
  5. Step 5: Solve for x
    x = 250,489,702.26/18,301.50
  6. Step 6: Final answer
    x = 13,686.84

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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.