Home / 7,825.48-10,797.71-4,987.85

Finding the Fourth Proportional to 7,825.48, 10,797.71 and 4,987.85

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Solution

The fourth proportional to 7,825.48, 10,797.71 and 4,987.85 is: 6,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.48 : 10,797.71 = 4,987.85 : x
  2. Step 2: Convert to fraction form
    7,825.48/10,797.71 = 4,987.85/x
  3. Step 3: Cross multiply
    7,825.48x = 10,797.71 × 4,987.85
  4. Step 4: Simplify right side
    7,825.48x = 53,857,278.90
  5. Step 5: Solve for x
    x = 53,857,278.90/7,825.48
  6. Step 6: Final answer
    x = 6,882.30

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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.