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Finding the Fourth Proportional to 6,669.32, 9,221.16 and 5,549.84

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Solution

The fourth proportional to 6,669.32, 9,221.16 and 5,549.84 is: 7,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.32 : 9,221.16 = 5,549.84 : x
  2. Step 2: Convert to fraction form
    6,669.32/9,221.16 = 5,549.84/x
  3. Step 3: Cross multiply
    6,669.32x = 9,221.16 × 5,549.84
  4. Step 4: Simplify right side
    6,669.32x = 51,175,962.61
  5. Step 5: Solve for x
    x = 51,175,962.61/6,669.32
  6. Step 6: Final answer
    x = 7,673.34

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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.