Home / 15,751.11-21,739.68-9,041.27

Finding the Fourth Proportional to 15,751.11, 21,739.68 and 9,041.27

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Solution

The fourth proportional to 15,751.11, 21,739.68 and 9,041.27 is: 12,478.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.11 : 21,739.68 = 9,041.27 : x
  2. Step 2: Convert to fraction form
    15,751.11/21,739.68 = 9,041.27/x
  3. Step 3: Cross multiply
    15,751.11x = 21,739.68 × 9,041.27
  4. Step 4: Simplify right side
    15,751.11x = 196,554,370.94
  5. Step 5: Solve for x
    x = 196,554,370.94/15,751.11
  6. Step 6: Final answer
    x = 12,478.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.