Home / 14,586.78-20,129.58-8,299.14

Finding the Fourth Proportional to 14,586.78, 20,129.58 and 8,299.14

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Solution

The fourth proportional to 14,586.78, 20,129.58 and 8,299.14 is: 11,452.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,586.78 : 20,129.58 = 8,299.14 : x
  2. Step 2: Convert to fraction form
    14,586.78/20,129.58 = 8,299.14/x
  3. Step 3: Cross multiply
    14,586.78x = 20,129.58 × 8,299.14
  4. Step 4: Simplify right side
    14,586.78x = 167,058,202.56
  5. Step 5: Solve for x
    x = 167,058,202.56/14,586.78
  6. Step 6: Final answer
    x = 11,452.71

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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.