Home / 18,763.48-28,154.94-13,611.88

Finding the Fourth Proportional to 18,763.48, 28,154.94 and 13,611.88

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Solution

The fourth proportional to 18,763.48, 28,154.94 and 13,611.88 is: 20,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.48 : 28,154.94 = 13,611.88 : x
  2. Step 2: Convert to fraction form
    18,763.48/28,154.94 = 13,611.88/x
  3. Step 3: Cross multiply
    18,763.48x = 28,154.94 × 13,611.88
  4. Step 4: Simplify right side
    18,763.48x = 383,241,664.69
  5. Step 5: Solve for x
    x = 383,241,664.69/18,763.48
  6. Step 6: Final answer
    x = 20,424.87

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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.