Home / 10,320.90-15,481.34-2,529.71

Finding the Fourth Proportional to 10,320.90, 15,481.34 and 2,529.71

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Solution

The fourth proportional to 10,320.90, 15,481.34 and 2,529.71 is: 3,794.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.90 : 15,481.34 = 2,529.71 : x
  2. Step 2: Convert to fraction form
    10,320.90/15,481.34 = 2,529.71/x
  3. Step 3: Cross multiply
    10,320.90x = 15,481.34 × 2,529.71
  4. Step 4: Simplify right side
    10,320.90x = 39,163,278.10
  5. Step 5: Solve for x
    x = 39,163,278.10/10,320.90
  6. Step 6: Final answer
    x = 3,794.56

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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.