Home / 11,578.20-17,371.35-5,009.10

Finding the Fourth Proportional to 11,578.20, 17,371.35 and 5,009.10

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Solution

The fourth proportional to 11,578.20, 17,371.35 and 5,009.10 is: 7,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,578.20 : 17,371.35 = 5,009.10 : x
  2. Step 2: Convert to fraction form
    11,578.20/17,371.35 = 5,009.10/x
  3. Step 3: Cross multiply
    11,578.20x = 17,371.35 × 5,009.10
  4. Step 4: Simplify right side
    11,578.20x = 87,014,829.29
  5. Step 5: Solve for x
    x = 87,014,829.29/11,578.20
  6. Step 6: Final answer
    x = 7,515.40

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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.