Home / 10,618.79-15,928.55-2,827.61

Finding the Fourth Proportional to 10,618.79, 15,928.55 and 2,827.61

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Solution

The fourth proportional to 10,618.79, 15,928.55 and 2,827.61 is: 4,241.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.79 : 15,928.55 = 2,827.61 : x
  2. Step 2: Convert to fraction form
    10,618.79/15,928.55 = 2,827.61/x
  3. Step 3: Cross multiply
    10,618.79x = 15,928.55 × 2,827.61
  4. Step 4: Simplify right side
    10,618.79x = 45,039,713.13
  5. Step 5: Solve for x
    x = 45,039,713.13/10,618.79
  6. Step 6: Final answer
    x = 4,241.51

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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.