Home / 9,121.76-13,660.92-5,824.64

Finding the Fourth Proportional to 9,121.76, 13,660.92 and 5,824.64

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Solution

The fourth proportional to 9,121.76, 13,660.92 and 5,824.64 is: 8,723.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.76 : 13,660.92 = 5,824.64 : x
  2. Step 2: Convert to fraction form
    9,121.76/13,660.92 = 5,824.64/x
  3. Step 3: Cross multiply
    9,121.76x = 13,660.92 × 5,824.64
  4. Step 4: Simplify right side
    9,121.76x = 79,569,941.07
  5. Step 5: Solve for x
    x = 79,569,941.07/9,121.76
  6. Step 6: Final answer
    x = 8,723.09

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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.