Home / 18,255.60-27,396.36-13,586.76

Finding the Fourth Proportional to 18,255.60, 27,396.36 and 13,586.76

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Solution

The fourth proportional to 18,255.60, 27,396.36 and 13,586.76 is: 20,389.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.60 : 27,396.36 = 13,586.76 : x
  2. Step 2: Convert to fraction form
    18,255.60/27,396.36 = 13,586.76/x
  3. Step 3: Cross multiply
    18,255.60x = 27,396.36 × 13,586.76
  4. Step 4: Simplify right side
    18,255.60x = 372,227,768.19
  5. Step 5: Solve for x
    x = 372,227,768.19/18,255.60
  6. Step 6: Final answer
    x = 20,389.79

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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.