Home / 13,671.74-20,507.48-3,811.00

Finding the Fourth Proportional to 13,671.74, 20,507.48 and 3,811.00

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Solution

The fourth proportional to 13,671.74, 20,507.48 and 3,811.00 is: 5,716.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.74 : 20,507.48 = 3,811.00 : x
  2. Step 2: Convert to fraction form
    13,671.74/20,507.48 = 3,811.00/x
  3. Step 3: Cross multiply
    13,671.74x = 20,507.48 × 3,811.00
  4. Step 4: Simplify right side
    13,671.74x = 78,153,988.70
  5. Step 5: Solve for x
    x = 78,153,988.70/13,671.74
  6. Step 6: Final answer
    x = 5,716.46

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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.