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Finding the Fourth Proportional to 10,875, 16,312.52 and 2,667

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Solution

The fourth proportional to 10,875, 16,312.52 and 2,667 is: 4,000.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,875 : 16,312.52 = 2,667 : x
  2. Step 2: Convert to fraction form
    10,875/16,312.52 = 2,667/x
  3. Step 3: Cross multiply
    10,875x = 16,312.52 × 2,667
  4. Step 4: Simplify right side
    10,875x = 43,505,490.84
  5. Step 5: Solve for x
    x = 43,505,490.84/10,875
  6. Step 6: Final answer
    x = 4,000.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.