Home / 8,067.16-11,133.48-5,420.08

Finding the Fourth Proportional to 8,067.16, 11,133.48 and 5,420.08

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Solution

The fourth proportional to 8,067.16, 11,133.48 and 5,420.08 is: 7,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,067.16 : 11,133.48 = 5,420.08 : x
  2. Step 2: Convert to fraction form
    8,067.16/11,133.48 = 5,420.08/x
  3. Step 3: Cross multiply
    8,067.16x = 11,133.48 × 5,420.08
  4. Step 4: Simplify right side
    8,067.16x = 60,344,352.28
  5. Step 5: Solve for x
    x = 60,344,352.28/8,067.16
  6. Step 6: Final answer
    x = 7,480.25

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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.