Home / 10,278.92-15,421.12-3,259.13

Finding the Fourth Proportional to 10,278.92, 15,421.12 and 3,259.13

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Solution

The fourth proportional to 10,278.92, 15,421.12 and 3,259.13 is: 4,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.92 : 15,421.12 = 3,259.13 : x
  2. Step 2: Convert to fraction form
    10,278.92/15,421.12 = 3,259.13/x
  3. Step 3: Cross multiply
    10,278.92x = 15,421.12 × 3,259.13
  4. Step 4: Simplify right side
    10,278.92x = 50,259,349.57
  5. Step 5: Solve for x
    x = 50,259,349.57/10,278.92
  6. Step 6: Final answer
    x = 4,889.55

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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.