Home / 18,315.12-27,472.70-6,625.60

Finding the Fourth Proportional to 18,315.12, 27,472.70 and 6,625.60

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Solution

The fourth proportional to 18,315.12, 27,472.70 and 6,625.60 is: 9,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.12 : 27,472.70 = 6,625.60 : x
  2. Step 2: Convert to fraction form
    18,315.12/27,472.70 = 6,625.60/x
  3. Step 3: Cross multiply
    18,315.12x = 27,472.70 × 6,625.60
  4. Step 4: Simplify right side
    18,315.12x = 182,023,121.12
  5. Step 5: Solve for x
    x = 182,023,121.12/18,315.12
  6. Step 6: Final answer
    x = 9,938.41

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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.