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Finding the Fourth Proportional to 9,118.82, 13,678.21 and 2,962.82

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Solution

The fourth proportional to 9,118.82, 13,678.21 and 2,962.82 is: 4,444.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.82 : 13,678.21 = 2,962.82 : x
  2. Step 2: Convert to fraction form
    9,118.82/13,678.21 = 2,962.82/x
  3. Step 3: Cross multiply
    9,118.82x = 13,678.21 × 2,962.82
  4. Step 4: Simplify right side
    9,118.82x = 40,526,074.15
  5. Step 5: Solve for x
    x = 40,526,074.15/9,118.82
  6. Step 6: Final answer
    x = 4,444.22

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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.