Home / 13,434.86-20,150.04-3,574.28

Finding the Fourth Proportional to 13,434.86, 20,150.04 and 3,574.28

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Solution

The fourth proportional to 13,434.86, 20,150.04 and 3,574.28 is: 5,360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.86 : 20,150.04 = 3,574.28 : x
  2. Step 2: Convert to fraction form
    13,434.86/20,150.04 = 3,574.28/x
  3. Step 3: Cross multiply
    13,434.86x = 20,150.04 × 3,574.28
  4. Step 4: Simplify right side
    13,434.86x = 72,021,884.97
  5. Step 5: Solve for x
    x = 72,021,884.97/13,434.86
  6. Step 6: Final answer
    x = 5,360.82

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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.