Home / 7,816.89-11,726.54-2,621.55

Finding the Fourth Proportional to 7,816.89, 11,726.54 and 2,621.55

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Solution

The fourth proportional to 7,816.89, 11,726.54 and 2,621.55 is: 3,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.89 : 11,726.54 = 2,621.55 : x
  2. Step 2: Convert to fraction form
    7,816.89/11,726.54 = 2,621.55/x
  3. Step 3: Cross multiply
    7,816.89x = 11,726.54 × 2,621.55
  4. Step 4: Simplify right side
    7,816.89x = 30,741,697.83
  5. Step 5: Solve for x
    x = 30,741,697.83/7,816.89
  6. Step 6: Final answer
    x = 3,932.73

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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.