Home / 13,615.18-20,395.43-6,209.45

Finding the Fourth Proportional to 13,615.18, 20,395.43 and 6,209.45

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Solution

The fourth proportional to 13,615.18, 20,395.43 and 6,209.45 is: 9,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.18 : 20,395.43 = 6,209.45 : x
  2. Step 2: Convert to fraction form
    13,615.18/20,395.43 = 6,209.45/x
  3. Step 3: Cross multiply
    13,615.18x = 20,395.43 × 6,209.45
  4. Step 4: Simplify right side
    13,615.18x = 126,644,418.34
  5. Step 5: Solve for x
    x = 126,644,418.34/13,615.18
  6. Step 6: Final answer
    x = 9,301.71

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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.