Home / 18,211.61-27,306.11-7,676.21

Finding the Fourth Proportional to 18,211.61, 27,306.11 and 7,676.21

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Solution

The fourth proportional to 18,211.61, 27,306.11 and 7,676.21 is: 11,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.61 : 27,306.11 = 7,676.21 : x
  2. Step 2: Convert to fraction form
    18,211.61/27,306.11 = 7,676.21/x
  3. Step 3: Cross multiply
    18,211.61x = 27,306.11 × 7,676.21
  4. Step 4: Simplify right side
    18,211.61x = 209,607,362.13
  5. Step 5: Solve for x
    x = 209,607,362.13/18,211.61
  6. Step 6: Final answer
    x = 11,509.55

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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.