Home / 10,144.72-15,215.68-2,749.68

Finding the Fourth Proportional to 10,144.72, 15,215.68 and 2,749.68

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Solution

The fourth proportional to 10,144.72, 15,215.68 and 2,749.68 is: 4,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.72 : 15,215.68 = 2,749.68 : x
  2. Step 2: Convert to fraction form
    10,144.72/15,215.68 = 2,749.68/x
  3. Step 3: Cross multiply
    10,144.72x = 15,215.68 × 2,749.68
  4. Step 4: Simplify right side
    10,144.72x = 41,838,250.98
  5. Step 5: Solve for x
    x = 41,838,250.98/10,144.72
  6. Step 6: Final answer
    x = 4,124.14

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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.