Home / 13,586.28-20,351.58-8,022.78

Finding the Fourth Proportional to 13,586.28, 20,351.58 and 8,022.78

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Solution

The fourth proportional to 13,586.28, 20,351.58 and 8,022.78 is: 12,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.28 : 20,351.58 = 8,022.78 : x
  2. Step 2: Convert to fraction form
    13,586.28/20,351.58 = 8,022.78/x
  3. Step 3: Cross multiply
    13,586.28x = 20,351.58 × 8,022.78
  4. Step 4: Simplify right side
    13,586.28x = 163,276,248.99
  5. Step 5: Solve for x
    x = 163,276,248.99/13,586.28
  6. Step 6: Final answer
    x = 12,017.73

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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.