Home / 8,118.04-11,191.74-5,132.38

Finding the Fourth Proportional to 8,118.04, 11,191.74 and 5,132.38

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Solution

The fourth proportional to 8,118.04, 11,191.74 and 5,132.38 is: 7,075.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.04 : 11,191.74 = 5,132.38 : x
  2. Step 2: Convert to fraction form
    8,118.04/11,191.74 = 5,132.38/x
  3. Step 3: Cross multiply
    8,118.04x = 11,191.74 × 5,132.38
  4. Step 4: Simplify right side
    8,118.04x = 57,440,262.54
  5. Step 5: Solve for x
    x = 57,440,262.54/8,118.04
  6. Step 6: Final answer
    x = 7,075.63

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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.