Home / 6,921.36-9,561.12-6,175.08

Finding the Fourth Proportional to 6,921.36, 9,561.12 and 6,175.08

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Solution

The fourth proportional to 6,921.36, 9,561.12 and 6,175.08 is: 8,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.36 : 9,561.12 = 6,175.08 : x
  2. Step 2: Convert to fraction form
    6,921.36/9,561.12 = 6,175.08/x
  3. Step 3: Cross multiply
    6,921.36x = 9,561.12 × 6,175.08
  4. Step 4: Simplify right side
    6,921.36x = 59,040,680.89
  5. Step 5: Solve for x
    x = 59,040,680.89/6,921.36
  6. Step 6: Final answer
    x = 8,530.21

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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.