Home / 13,370.47-20,057.69-12,550.39

Finding the Fourth Proportional to 13,370.47, 20,057.69 and 12,550.39

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Solution

The fourth proportional to 13,370.47, 20,057.69 and 12,550.39 is: 18,827.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.47 : 20,057.69 = 12,550.39 : x
  2. Step 2: Convert to fraction form
    13,370.47/20,057.69 = 12,550.39/x
  3. Step 3: Cross multiply
    13,370.47x = 20,057.69 × 12,550.39
  4. Step 4: Simplify right side
    13,370.47x = 251,731,769.25
  5. Step 5: Solve for x
    x = 251,731,769.25/13,370.47
  6. Step 6: Final answer
    x = 18,827.44

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1.5x scale

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.