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Finding the Fourth Proportional to 8,882.34, 12,258.59 and 6,640.37

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Solution

The fourth proportional to 8,882.34, 12,258.59 and 6,640.37 is: 9,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,882.34 : 12,258.59 = 6,640.37 : x
  2. Step 2: Convert to fraction form
    8,882.34/12,258.59 = 6,640.37/x
  3. Step 3: Cross multiply
    8,882.34x = 12,258.59 × 6,640.37
  4. Step 4: Simplify right side
    8,882.34x = 81,401,478.78
  5. Step 5: Solve for x
    x = 81,401,478.78/8,882.34
  6. Step 6: Final answer
    x = 9,164.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.