Home / 18,281.86-27,419.31-8,912.46

Finding the Fourth Proportional to 18,281.86, 27,419.31 and 8,912.46

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Solution

The fourth proportional to 18,281.86, 27,419.31 and 8,912.46 is: 13,366.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.86 : 27,419.31 = 8,912.46 : x
  2. Step 2: Convert to fraction form
    18,281.86/27,419.31 = 8,912.46/x
  3. Step 3: Cross multiply
    18,281.86x = 27,419.31 × 8,912.46
  4. Step 4: Simplify right side
    18,281.86x = 244,373,503.60
  5. Step 5: Solve for x
    x = 244,373,503.60/18,281.86
  6. Step 6: Final answer
    x = 13,366.99

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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.