Home / 11,863.05-16,371.01-7,148.25

Finding the Fourth Proportional to 11,863.05, 16,371.01 and 7,148.25

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Solution

The fourth proportional to 11,863.05, 16,371.01 and 7,148.25 is: 9,864.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,863.05 : 16,371.01 = 7,148.25 : x
  2. Step 2: Convert to fraction form
    11,863.05/16,371.01 = 7,148.25/x
  3. Step 3: Cross multiply
    11,863.05x = 16,371.01 × 7,148.25
  4. Step 4: Simplify right side
    11,863.05x = 117,024,072.23
  5. Step 5: Solve for x
    x = 117,024,072.23/11,863.05
  6. Step 6: Final answer
    x = 9,864.59

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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.