Home / 18,211.31-27,307.82-10,615.04

Finding the Fourth Proportional to 18,211.31, 27,307.82 and 10,615.04

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Solution

The fourth proportional to 18,211.31, 27,307.82 and 10,615.04 is: 15,917.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.31 : 27,307.82 = 10,615.04 : x
  2. Step 2: Convert to fraction form
    18,211.31/27,307.82 = 10,615.04/x
  3. Step 3: Cross multiply
    18,211.31x = 27,307.82 × 10,615.04
  4. Step 4: Simplify right side
    18,211.31x = 289,873,601.61
  5. Step 5: Solve for x
    x = 289,873,601.61/18,211.31
  6. Step 6: Final answer
    x = 15,917.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.