Home / 13,542.03-18,687.05-12,426.66

Finding the Fourth Proportional to 13,542.03, 18,687.05 and 12,426.66

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Solution

The fourth proportional to 13,542.03, 18,687.05 and 12,426.66 is: 17,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.03 : 18,687.05 = 12,426.66 : x
  2. Step 2: Convert to fraction form
    13,542.03/18,687.05 = 12,426.66/x
  3. Step 3: Cross multiply
    13,542.03x = 18,687.05 × 12,426.66
  4. Step 4: Simplify right side
    13,542.03x = 232,217,601.34
  5. Step 5: Solve for x
    x = 232,217,601.34/13,542.03
  6. Step 6: Final answer
    x = 17,147.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.