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Finding the Fourth Proportional to 8,962.25, 13,443.39 and 3,490.25

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Solution

The fourth proportional to 8,962.25, 13,443.39 and 3,490.25 is: 5,235.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,962.25 : 13,443.39 = 3,490.25 : x
  2. Step 2: Convert to fraction form
    8,962.25/13,443.39 = 3,490.25/x
  3. Step 3: Cross multiply
    8,962.25x = 13,443.39 × 3,490.25
  4. Step 4: Simplify right side
    8,962.25x = 46,920,791.95
  5. Step 5: Solve for x
    x = 46,920,791.95/8,962.25
  6. Step 6: Final answer
    x = 5,235.38

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1.5x scale

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.