Home / 8,110.36-11,196.08-5,428.72

Finding the Fourth Proportional to 8,110.36, 11,196.08 and 5,428.72

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Solution

The fourth proportional to 8,110.36, 11,196.08 and 5,428.72 is: 7,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.36 : 11,196.08 = 5,428.72 : x
  2. Step 2: Convert to fraction form
    8,110.36/11,196.08 = 5,428.72/x
  3. Step 3: Cross multiply
    8,110.36x = 11,196.08 × 5,428.72
  4. Step 4: Simplify right side
    8,110.36x = 60,780,383.42
  5. Step 5: Solve for x
    x = 60,780,383.42/8,110.36
  6. Step 6: Final answer
    x = 7,494.17

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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.