Home / 13,602.80-20,399.56-4,716.05

Finding the Fourth Proportional to 13,602.80, 20,399.56 and 4,716.05

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Solution

The fourth proportional to 13,602.80, 20,399.56 and 4,716.05 is: 7,072.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.80 : 20,399.56 = 4,716.05 : x
  2. Step 2: Convert to fraction form
    13,602.80/20,399.56 = 4,716.05/x
  3. Step 3: Cross multiply
    13,602.80x = 20,399.56 × 4,716.05
  4. Step 4: Simplify right side
    13,602.80x = 96,205,384.15
  5. Step 5: Solve for x
    x = 96,205,384.15/13,602.80
  6. Step 6: Final answer
    x = 7,072.47

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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.