Home / 13,541.12-20,313.89-4,178.97

Finding the Fourth Proportional to 13,541.12, 20,313.89 and 4,178.97

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Solution

The fourth proportional to 13,541.12, 20,313.89 and 4,178.97 is: 6,269.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.12 : 20,313.89 = 4,178.97 : x
  2. Step 2: Convert to fraction form
    13,541.12/20,313.89 = 4,178.97/x
  3. Step 3: Cross multiply
    13,541.12x = 20,313.89 × 4,178.97
  4. Step 4: Simplify right side
    13,541.12x = 84,891,074.54
  5. Step 5: Solve for x
    x = 84,891,074.54/13,541.12
  6. Step 6: Final answer
    x = 6,269.13

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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.