Home / 13,542.03-20,306.79-4,178.79

Finding the Fourth Proportional to 13,542.03, 20,306.79 and 4,178.79

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Solution

The fourth proportional to 13,542.03, 20,306.79 and 4,178.79 is: 6,266.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.03 : 20,306.79 = 4,178.79 : x
  2. Step 2: Convert to fraction form
    13,542.03/20,306.79 = 4,178.79/x
  3. Step 3: Cross multiply
    13,542.03x = 20,306.79 × 4,178.79
  4. Step 4: Simplify right side
    13,542.03x = 84,857,810.98
  5. Step 5: Solve for x
    x = 84,857,810.98/13,542.03
  6. Step 6: Final answer
    x = 6,266.25

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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.