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Finding the Fourth Proportional to 9,330.92, 13,928.11 and 8,223.79

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Solution

The fourth proportional to 9,330.92, 13,928.11 and 8,223.79 is: 12,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330.92 : 13,928.11 = 8,223.79 : x
  2. Step 2: Convert to fraction form
    9,330.92/13,928.11 = 8,223.79/x
  3. Step 3: Cross multiply
    9,330.92x = 13,928.11 × 8,223.79
  4. Step 4: Simplify right side
    9,330.92x = 114,541,851.74
  5. Step 5: Solve for x
    x = 114,541,851.74/9,330.92
  6. Step 6: Final answer
    x = 12,275.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.