Home / 11,385.80-17,080.75-5,148.74

Finding the Fourth Proportional to 11,385.80, 17,080.75 and 5,148.74

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Solution

The fourth proportional to 11,385.80, 17,080.75 and 5,148.74 is: 7,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.80 : 17,080.75 = 5,148.74 : x
  2. Step 2: Convert to fraction form
    11,385.80/17,080.75 = 5,148.74/x
  3. Step 3: Cross multiply
    11,385.80x = 17,080.75 × 5,148.74
  4. Step 4: Simplify right side
    11,385.80x = 87,944,340.76
  5. Step 5: Solve for x
    x = 87,944,340.76/11,385.80
  6. Step 6: Final answer
    x = 7,724.04

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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.