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Finding the Fourth Proportional to 9,167.94, 12,638.48 and 6,774.39

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Solution

The fourth proportional to 9,167.94, 12,638.48 and 6,774.39 is: 9,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.94 : 12,638.48 = 6,774.39 : x
  2. Step 2: Convert to fraction form
    9,167.94/12,638.48 = 6,774.39/x
  3. Step 3: Cross multiply
    9,167.94x = 12,638.48 × 6,774.39
  4. Step 4: Simplify right side
    9,167.94x = 85,617,992.53
  5. Step 5: Solve for x
    x = 85,617,992.53/9,167.94
  6. Step 6: Final answer
    x = 9,338.85

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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.