Home / 11,441.92-15,781.70-10,500.75

Finding the Fourth Proportional to 11,441.92, 15,781.70 and 10,500.75

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Solution

The fourth proportional to 11,441.92, 15,781.70 and 10,500.75 is: 14,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,441.92 : 15,781.70 = 10,500.75 : x
  2. Step 2: Convert to fraction form
    11,441.92/15,781.70 = 10,500.75/x
  3. Step 3: Cross multiply
    11,441.92x = 15,781.70 × 10,500.75
  4. Step 4: Simplify right side
    11,441.92x = 165,719,594.24
  5. Step 5: Solve for x
    x = 165,719,594.24/11,441.92
  6. Step 6: Final answer
    x = 14,483.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.