Home / 13,518.23-20,272.01-5,615.46

Finding the Fourth Proportional to 13,518.23, 20,272.01 and 5,615.46

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Solution

The fourth proportional to 13,518.23, 20,272.01 and 5,615.46 is: 8,420.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.23 : 20,272.01 = 5,615.46 : x
  2. Step 2: Convert to fraction form
    13,518.23/20,272.01 = 5,615.46/x
  3. Step 3: Cross multiply
    13,518.23x = 20,272.01 × 5,615.46
  4. Step 4: Simplify right side
    13,518.23x = 113,836,633.20
  5. Step 5: Solve for x
    x = 113,836,633.20/13,518.23
  6. Step 6: Final answer
    x = 8,420.97

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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.