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Finding the Fourth Proportional to 8,974.55, 13,521.65 and 8,266.07

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Solution

The fourth proportional to 8,974.55, 13,521.65 and 8,266.07 is: 12,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.55 : 13,521.65 = 8,266.07 : x
  2. Step 2: Convert to fraction form
    8,974.55/13,521.65 = 8,266.07/x
  3. Step 3: Cross multiply
    8,974.55x = 13,521.65 × 8,266.07
  4. Step 4: Simplify right side
    8,974.55x = 111,770,905.42
  5. Step 5: Solve for x
    x = 111,770,905.42/8,974.55
  6. Step 6: Final answer
    x = 12,454.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.