Home / 13,081.96-18,027.30-8,600.68

Finding the Fourth Proportional to 13,081.96, 18,027.30 and 8,600.68

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Solution

The fourth proportional to 13,081.96, 18,027.30 and 8,600.68 is: 11,851.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.96 : 18,027.30 = 8,600.68 : x
  2. Step 2: Convert to fraction form
    13,081.96/18,027.30 = 8,600.68/x
  3. Step 3: Cross multiply
    13,081.96x = 18,027.30 × 8,600.68
  4. Step 4: Simplify right side
    13,081.96x = 155,047,038.56
  5. Step 5: Solve for x
    x = 155,047,038.56/13,081.96
  6. Step 6: Final answer
    x = 11,851.97

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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.