Home / 15,119.36-22,668.20-7,109.64

Finding the Fourth Proportional to 15,119.36, 22,668.20 and 7,109.64

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Solution

The fourth proportional to 15,119.36, 22,668.20 and 7,109.64 is: 10,659.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,119.36 : 22,668.20 = 7,109.64 : x
  2. Step 2: Convert to fraction form
    15,119.36/22,668.20 = 7,109.64/x
  3. Step 3: Cross multiply
    15,119.36x = 22,668.20 × 7,109.64
  4. Step 4: Simplify right side
    15,119.36x = 161,162,705.90
  5. Step 5: Solve for x
    x = 161,162,705.90/15,119.36
  6. Step 6: Final answer
    x = 10,659.36

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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.