Home / 15,422.70-23,121.09-8,011.20

Finding the Fourth Proportional to 15,422.70, 23,121.09 and 8,011.20

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Solution

The fourth proportional to 15,422.70, 23,121.09 and 8,011.20 is: 12,010.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.70 : 23,121.09 = 8,011.20 : x
  2. Step 2: Convert to fraction form
    15,422.70/23,121.09 = 8,011.20/x
  3. Step 3: Cross multiply
    15,422.70x = 23,121.09 × 8,011.20
  4. Step 4: Simplify right side
    15,422.70x = 185,227,676.21
  5. Step 5: Solve for x
    x = 185,227,676.21/15,422.70
  6. Step 6: Final answer
    x = 12,010.07

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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.