Home / 7,821.20-10,772.52-5,825.36

Finding the Fourth Proportional to 7,821.20, 10,772.52 and 5,825.36

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Solution

The fourth proportional to 7,821.20, 10,772.52 and 5,825.36 is: 8,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.20 : 10,772.52 = 5,825.36 : x
  2. Step 2: Convert to fraction form
    7,821.20/10,772.52 = 5,825.36/x
  3. Step 3: Cross multiply
    7,821.20x = 10,772.52 × 5,825.36
  4. Step 4: Simplify right side
    7,821.20x = 62,753,807.11
  5. Step 5: Solve for x
    x = 62,753,807.11/7,821.20
  6. Step 6: Final answer
    x = 8,023.55

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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.