Home / 11,371.20-17,042.40-5,124.60

Finding the Fourth Proportional to 11,371.20, 17,042.40 and 5,124.60

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Solution

The fourth proportional to 11,371.20, 17,042.40 and 5,124.60 is: 7,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,371.20 : 17,042.40 = 5,124.60 : x
  2. Step 2: Convert to fraction form
    11,371.20/17,042.40 = 5,124.60/x
  3. Step 3: Cross multiply
    11,371.20x = 17,042.40 × 5,124.60
  4. Step 4: Simplify right side
    11,371.20x = 87,335,483.04
  5. Step 5: Solve for x
    x = 87,335,483.04/11,371.20
  6. Step 6: Final answer
    x = 7,680.41

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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.