Home / 15,371.78-23,028.51-9,118.58

Finding the Fourth Proportional to 15,371.78, 23,028.51 and 9,118.58

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Solution

The fourth proportional to 15,371.78, 23,028.51 and 9,118.58 is: 13,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,371.78 : 23,028.51 = 9,118.58 : x
  2. Step 2: Convert to fraction form
    15,371.78/23,028.51 = 9,118.58/x
  3. Step 3: Cross multiply
    15,371.78x = 23,028.51 × 9,118.58
  4. Step 4: Simplify right side
    15,371.78x = 209,987,310.72
  5. Step 5: Solve for x
    x = 209,987,310.72/15,371.78
  6. Step 6: Final answer
    x = 13,660.57

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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.