Home / 13,452.18-20,145.36-11,615.10

Finding the Fourth Proportional to 13,452.18, 20,145.36 and 11,615.10

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Solution

The fourth proportional to 13,452.18, 20,145.36 and 11,615.10 is: 17,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.18 : 20,145.36 = 11,615.10 : x
  2. Step 2: Convert to fraction form
    13,452.18/20,145.36 = 11,615.10/x
  3. Step 3: Cross multiply
    13,452.18x = 20,145.36 × 11,615.10
  4. Step 4: Simplify right side
    13,452.18x = 233,990,370.94
  5. Step 5: Solve for x
    x = 233,990,370.94/13,452.18
  6. Step 6: Final answer
    x = 17,394.23

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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.