Home / 8,560.54-11,815.52-5,571.18

Finding the Fourth Proportional to 8,560.54, 11,815.52 and 5,571.18

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Solution

The fourth proportional to 8,560.54, 11,815.52 and 5,571.18 is: 7,689.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.54 : 11,815.52 = 5,571.18 : x
  2. Step 2: Convert to fraction form
    8,560.54/11,815.52 = 5,571.18/x
  3. Step 3: Cross multiply
    8,560.54x = 11,815.52 × 5,571.18
  4. Step 4: Simplify right side
    8,560.54x = 65,826,392.20
  5. Step 5: Solve for x
    x = 65,826,392.20/8,560.54
  6. Step 6: Final answer
    x = 7,689.52

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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.