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Finding the Fourth Proportional to 8,667.04, 11,946.40 and 6,775.28

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Solution

The fourth proportional to 8,667.04, 11,946.40 and 6,775.28 is: 9,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.04 : 11,946.40 = 6,775.28 : x
  2. Step 2: Convert to fraction form
    8,667.04/11,946.40 = 6,775.28/x
  3. Step 3: Cross multiply
    8,667.04x = 11,946.40 × 6,775.28
  4. Step 4: Simplify right side
    8,667.04x = 80,940,204.99
  5. Step 5: Solve for x
    x = 80,940,204.99/8,667.04
  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.