Home / 11,451.78-17,187.09-4,885.38

Finding the Fourth Proportional to 11,451.78, 17,187.09 and 4,885.38

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Solution

The fourth proportional to 11,451.78, 17,187.09 and 4,885.38 is: 7,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.78 : 17,187.09 = 4,885.38 : x
  2. Step 2: Convert to fraction form
    11,451.78/17,187.09 = 4,885.38/x
  3. Step 3: Cross multiply
    11,451.78x = 17,187.09 × 4,885.38
  4. Step 4: Simplify right side
    11,451.78x = 83,965,465.74
  5. Step 5: Solve for x
    x = 83,965,465.74/11,451.78
  6. Step 6: Final answer
    x = 7,332.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.