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Finding the Fourth Proportional to 8,809.06, 13,202.19 and 6,721.36

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Solution

The fourth proportional to 8,809.06, 13,202.19 and 6,721.36 is: 10,073.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.06 : 13,202.19 = 6,721.36 : x
  2. Step 2: Convert to fraction form
    8,809.06/13,202.19 = 6,721.36/x
  3. Step 3: Cross multiply
    8,809.06x = 13,202.19 × 6,721.36
  4. Step 4: Simplify right side
    8,809.06x = 88,736,671.78
  5. Step 5: Solve for x
    x = 88,736,671.78/8,809.06
  6. Step 6: Final answer
    x = 10,073.34

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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.