Home / 11,439.36-17,149.32-10,820.52

Finding the Fourth Proportional to 11,439.36, 17,149.32 and 10,820.52

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Solution

The fourth proportional to 11,439.36, 17,149.32 and 10,820.52 is: 16,221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.36 : 17,149.32 = 10,820.52 : x
  2. Step 2: Convert to fraction form
    11,439.36/17,149.32 = 10,820.52/x
  3. Step 3: Cross multiply
    11,439.36x = 17,149.32 × 10,820.52
  4. Step 4: Simplify right side
    11,439.36x = 185,564,560.05
  5. Step 5: Solve for x
    x = 185,564,560.05/11,439.36
  6. Step 6: Final answer
    x = 16,221.59

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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.