Home / 13,426.93-20,135.60-5,104.74

Finding the Fourth Proportional to 13,426.93, 20,135.60 and 5,104.74

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Solution

The fourth proportional to 13,426.93, 20,135.60 and 5,104.74 is: 7,655.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.93 : 20,135.60 = 5,104.74 : x
  2. Step 2: Convert to fraction form
    13,426.93/20,135.60 = 5,104.74/x
  3. Step 3: Cross multiply
    13,426.93x = 20,135.60 × 5,104.74
  4. Step 4: Simplify right side
    13,426.93x = 102,787,002.74
  5. Step 5: Solve for x
    x = 102,787,002.74/13,426.93
  6. Step 6: Final answer
    x = 7,655.29

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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.