Home / 18,861.24-26,013.48-12,147.42

Finding the Fourth Proportional to 18,861.24, 26,013.48 and 12,147.42

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Solution

The fourth proportional to 18,861.24, 26,013.48 and 12,147.42 is: 16,753.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.24 : 26,013.48 = 12,147.42 : x
  2. Step 2: Convert to fraction form
    18,861.24/26,013.48 = 12,147.42/x
  3. Step 3: Cross multiply
    18,861.24x = 26,013.48 × 12,147.42
  4. Step 4: Simplify right side
    18,861.24x = 315,996,667.22
  5. Step 5: Solve for x
    x = 315,996,667.22/18,861.24
  6. Step 6: Final answer
    x = 16,753.76

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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.