Home / 10,021.89-15,040.13-4,481.49

Finding the Fourth Proportional to 10,021.89, 15,040.13 and 4,481.49

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Solution

The fourth proportional to 10,021.89, 15,040.13 and 4,481.49 is: 6,725.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.89 : 15,040.13 = 4,481.49 : x
  2. Step 2: Convert to fraction form
    10,021.89/15,040.13 = 4,481.49/x
  3. Step 3: Cross multiply
    10,021.89x = 15,040.13 × 4,481.49
  4. Step 4: Simplify right side
    10,021.89x = 67,402,169.79
  5. Step 5: Solve for x
    x = 67,402,169.79/10,021.89
  6. Step 6: Final answer
    x = 6,725.49

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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.