Home / 7,012.12-9,676.66-3,868.24

Finding the Fourth Proportional to 7,012.12, 9,676.66 and 3,868.24

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Solution

The fourth proportional to 7,012.12, 9,676.66 and 3,868.24 is: 5,338.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.12 : 9,676.66 = 3,868.24 : x
  2. Step 2: Convert to fraction form
    7,012.12/9,676.66 = 3,868.24/x
  3. Step 3: Cross multiply
    7,012.12x = 9,676.66 × 3,868.24
  4. Step 4: Simplify right side
    7,012.12x = 37,431,643.28
  5. Step 5: Solve for x
    x = 37,431,643.28/7,012.12
  6. Step 6: Final answer
    x = 5,338.14

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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.