Home / 10,561.18-15,841.78-3,166.42

Finding the Fourth Proportional to 10,561.18, 15,841.78 and 3,166.42

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Solution

The fourth proportional to 10,561.18, 15,841.78 and 3,166.42 is: 4,749.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.18 : 15,841.78 = 3,166.42 : x
  2. Step 2: Convert to fraction form
    10,561.18/15,841.78 = 3,166.42/x
  3. Step 3: Cross multiply
    10,561.18x = 15,841.78 × 3,166.42
  4. Step 4: Simplify right side
    10,561.18x = 50,161,729.03
  5. Step 5: Solve for x
    x = 50,161,729.03/10,561.18
  6. Step 6: Final answer
    x = 4,749.63

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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.