Home / 8,075.42-11,147.92-5,424.74

Finding the Fourth Proportional to 8,075.42, 11,147.92 and 5,424.74

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Solution

The fourth proportional to 8,075.42, 11,147.92 and 5,424.74 is: 7,488.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.42 : 11,147.92 = 5,424.74 : x
  2. Step 2: Convert to fraction form
    8,075.42/11,147.92 = 5,424.74/x
  3. Step 3: Cross multiply
    8,075.42x = 11,147.92 × 5,424.74
  4. Step 4: Simplify right side
    8,075.42x = 60,474,567.54
  5. Step 5: Solve for x
    x = 60,474,567.54/8,075.42
  6. Step 6: Final answer
    x = 7,488.72

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1.5x scale

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.