Home / 15,154.26-20,919.34-10,189.14

Finding the Fourth Proportional to 15,154.26, 20,919.34 and 10,189.14

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Solution

The fourth proportional to 15,154.26, 20,919.34 and 10,189.14 is: 14,065.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.26 : 20,919.34 = 10,189.14 : x
  2. Step 2: Convert to fraction form
    15,154.26/20,919.34 = 10,189.14/x
  3. Step 3: Cross multiply
    15,154.26x = 20,919.34 × 10,189.14
  4. Step 4: Simplify right side
    15,154.26x = 213,150,083.97
  5. Step 5: Solve for x
    x = 213,150,083.97/15,154.26
  6. Step 6: Final answer
    x = 14,065.36

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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.