Home / 8,857.62-13,287.65-2,618.12

Finding the Fourth Proportional to 8,857.62, 13,287.65 and 2,618.12

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Solution

The fourth proportional to 8,857.62, 13,287.65 and 2,618.12 is: 3,927.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.62 : 13,287.65 = 2,618.12 : x
  2. Step 2: Convert to fraction form
    8,857.62/13,287.65 = 2,618.12/x
  3. Step 3: Cross multiply
    8,857.62x = 13,287.65 × 2,618.12
  4. Step 4: Simplify right side
    8,857.62x = 34,788,682.35
  5. Step 5: Solve for x
    x = 34,788,682.35/8,857.62
  6. Step 6: Final answer
    x = 3,927.54

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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.