Home / 7,851.24-11,769.57-5,387.22

Finding the Fourth Proportional to 7,851.24, 11,769.57 and 5,387.22

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Solution

The fourth proportional to 7,851.24, 11,769.57 and 5,387.22 is: 8,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.24 : 11,769.57 = 5,387.22 : x
  2. Step 2: Convert to fraction form
    7,851.24/11,769.57 = 5,387.22/x
  3. Step 3: Cross multiply
    7,851.24x = 11,769.57 × 5,387.22
  4. Step 4: Simplify right side
    7,851.24x = 63,405,262.90
  5. Step 5: Solve for x
    x = 63,405,262.90/7,851.24
  6. Step 6: Final answer
    x = 8,075.83

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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.