Home / 13,666.25-20,505.87-5,770.59

Finding the Fourth Proportional to 13,666.25, 20,505.87 and 5,770.59

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Solution

The fourth proportional to 13,666.25, 20,505.87 and 5,770.59 is: 8,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.25 : 20,505.87 = 5,770.59 : x
  2. Step 2: Convert to fraction form
    13,666.25/20,505.87 = 5,770.59/x
  3. Step 3: Cross multiply
    13,666.25x = 20,505.87 × 5,770.59
  4. Step 4: Simplify right side
    13,666.25x = 118,330,968.36
  5. Step 5: Solve for x
    x = 118,330,968.36/13,666.25
  6. Step 6: Final answer
    x = 8,658.63

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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.