Home / 7,519.68-10,380.69-5,005.91

Finding the Fourth Proportional to 7,519.68, 10,380.69 and 5,005.91

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Solution

The fourth proportional to 7,519.68, 10,380.69 and 5,005.91 is: 6,910.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,519.68 : 10,380.69 = 5,005.91 : x
  2. Step 2: Convert to fraction form
    7,519.68/10,380.69 = 5,005.91/x
  3. Step 3: Cross multiply
    7,519.68x = 10,380.69 × 5,005.91
  4. Step 4: Simplify right side
    7,519.68x = 51,964,825.83
  5. Step 5: Solve for x
    x = 51,964,825.83/7,519.68
  6. Step 6: Final answer
    x = 6,910.51

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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.