Home / 7,747.14-11,617.80-2,815.56

Finding the Fourth Proportional to 7,747.14, 11,617.80 and 2,815.56

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Solution

The fourth proportional to 7,747.14, 11,617.80 and 2,815.56 is: 4,222.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.14 : 11,617.80 = 2,815.56 : x
  2. Step 2: Convert to fraction form
    7,747.14/11,617.80 = 2,815.56/x
  3. Step 3: Cross multiply
    7,747.14x = 11,617.80 × 2,815.56
  4. Step 4: Simplify right side
    7,747.14x = 32,710,612.97
  5. Step 5: Solve for x
    x = 32,710,612.97/7,747.14
  6. Step 6: Final answer
    x = 4,222.28

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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.