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Finding the Fourth Proportional to 8,199.65, 12,301.28 and 2,653.56

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Solution

The fourth proportional to 8,199.65, 12,301.28 and 2,653.56 is: 3,980.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.65 : 12,301.28 = 2,653.56 : x
  2. Step 2: Convert to fraction form
    8,199.65/12,301.28 = 2,653.56/x
  3. Step 3: Cross multiply
    8,199.65x = 12,301.28 × 2,653.56
  4. Step 4: Simplify right side
    8,199.65x = 32,642,181.24
  5. Step 5: Solve for x
    x = 32,642,181.24/8,199.65
  6. Step 6: Final answer
    x = 3,980.92

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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.