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Finding the Fourth Proportional to 8,895.62, 13,338.90 and 2,970.38

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Solution

The fourth proportional to 8,895.62, 13,338.90 and 2,970.38 is: 4,454.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,895.62 : 13,338.90 = 2,970.38 : x
  2. Step 2: Convert to fraction form
    8,895.62/13,338.90 = 2,970.38/x
  3. Step 3: Cross multiply
    8,895.62x = 13,338.90 × 2,970.38
  4. Step 4: Simplify right side
    8,895.62x = 39,621,601.78
  5. Step 5: Solve for x
    x = 39,621,601.78/8,895.62
  6. Step 6: Final answer
    x = 4,454.06

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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.