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Finding the Fourth Proportional to 8,870.62, 12,241.23 and 4,891.66

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Solution

The fourth proportional to 8,870.62, 12,241.23 and 4,891.66 is: 6,750.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870.62 : 12,241.23 = 4,891.66 : x
  2. Step 2: Convert to fraction form
    8,870.62/12,241.23 = 4,891.66/x
  3. Step 3: Cross multiply
    8,870.62x = 12,241.23 × 4,891.66
  4. Step 4: Simplify right side
    8,870.62x = 59,879,935.14
  5. Step 5: Solve for x
    x = 59,879,935.14/8,870.62
  6. Step 6: Final answer
    x = 6,750.37

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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.