Home / 13,434.13-20,151.60-3,574.41

Finding the Fourth Proportional to 13,434.13, 20,151.60 and 3,574.41

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Solution

The fourth proportional to 13,434.13, 20,151.60 and 3,574.41 is: 5,361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.13 : 20,151.60 = 3,574.41 : x
  2. Step 2: Convert to fraction form
    13,434.13/20,151.60 = 3,574.41/x
  3. Step 3: Cross multiply
    13,434.13x = 20,151.60 × 3,574.41
  4. Step 4: Simplify right side
    13,434.13x = 72,030,080.56
  5. Step 5: Solve for x
    x = 72,030,080.56/13,434.13
  6. Step 6: Final answer
    x = 5,361.72

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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.