Home / 18,211.01-27,315.50-7,676.55

Finding the Fourth Proportional to 18,211.01, 27,315.50 and 7,676.55

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Solution

The fourth proportional to 18,211.01, 27,315.50 and 7,676.55 is: 11,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.01 : 27,315.50 = 7,676.55 : x
  2. Step 2: Convert to fraction form
    18,211.01/27,315.50 = 7,676.55/x
  3. Step 3: Cross multiply
    18,211.01x = 27,315.50 × 7,676.55
  4. Step 4: Simplify right side
    18,211.01x = 209,688,763.14
  5. Step 5: Solve for x
    x = 209,688,763.14/18,211.01
  6. Step 6: Final answer
    x = 11,514.40

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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.