Home / 11,612.80-17,422.20-5,037.48

Finding the Fourth Proportional to 11,612.80, 17,422.20 and 5,037.48

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Solution

The fourth proportional to 11,612.80, 17,422.20 and 5,037.48 is: 7,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.80 : 17,422.20 = 5,037.48 : x
  2. Step 2: Convert to fraction form
    11,612.80/17,422.20 = 5,037.48/x
  3. Step 3: Cross multiply
    11,612.80x = 17,422.20 × 5,037.48
  4. Step 4: Simplify right side
    11,612.80x = 87,763,984.06
  5. Step 5: Solve for x
    x = 87,763,984.06/11,612.80
  6. Step 6: Final answer
    x = 7,557.52

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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.