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Finding the Fourth Proportional to 7,006.93, 9,667.85 and 3,981.38

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Solution

The fourth proportional to 7,006.93, 9,667.85 and 3,981.38 is: 5,493.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,006.93 : 9,667.85 = 3,981.38 : x
  2. Step 2: Convert to fraction form
    7,006.93/9,667.85 = 3,981.38/x
  3. Step 3: Cross multiply
    7,006.93x = 9,667.85 × 3,981.38
  4. Step 4: Simplify right side
    7,006.93x = 38,491,316.39
  5. Step 5: Solve for x
    x = 38,491,316.39/7,006.93
  6. Step 6: Final answer
    x = 5,493.32

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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.