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Finding the Fourth Proportional to 7,684.89, 10,593.98 and 6,618.04

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Solution

The fourth proportional to 7,684.89, 10,593.98 and 6,618.04 is: 9,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,684.89 : 10,593.98 = 6,618.04 : x
  2. Step 2: Convert to fraction form
    7,684.89/10,593.98 = 6,618.04/x
  3. Step 3: Cross multiply
    7,684.89x = 10,593.98 × 6,618.04
  4. Step 4: Simplify right side
    7,684.89x = 70,111,383.40
  5. Step 5: Solve for x
    x = 70,111,383.40/7,684.89
  6. Step 6: Final answer
    x = 9,123.28

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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.