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Finding the Fourth Proportional to 10,559.61, 15,839.42 and 2,768.42

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Solution

The fourth proportional to 10,559.61, 15,839.42 and 2,768.42 is: 4,152.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,559.61 : 15,839.42 = 2,768.42 : x
  2. Step 2: Convert to fraction form
    10,559.61/15,839.42 = 2,768.42/x
  3. Step 3: Cross multiply
    10,559.61x = 15,839.42 × 2,768.42
  4. Step 4: Simplify right side
    10,559.61x = 43,850,153.27
  5. Step 5: Solve for x
    x = 43,850,153.27/10,559.61
  6. Step 6: Final answer
    x = 4,152.63

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Similar ratio
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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.