Home / 13,540.75-20,303.70-4,178.17

Finding the Fourth Proportional to 13,540.75, 20,303.70 and 4,178.17

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Solution

The fourth proportional to 13,540.75, 20,303.70 and 4,178.17 is: 6,264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.75 : 20,303.70 = 4,178.17 : x
  2. Step 2: Convert to fraction form
    13,540.75/20,303.70 = 4,178.17/x
  3. Step 3: Cross multiply
    13,540.75x = 20,303.70 × 4,178.17
  4. Step 4: Simplify right side
    13,540.75x = 84,832,310.23
  5. Step 5: Solve for x
    x = 84,832,310.23/13,540.75
  6. Step 6: Final answer
    x = 6,264.96

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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.