Home / 18,811.06-28,220.38-5,484.03

Finding the Fourth Proportional to 18,811.06, 28,220.38 and 5,484.03

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Solution

The fourth proportional to 18,811.06, 28,220.38 and 5,484.03 is: 8,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.06 : 28,220.38 = 5,484.03 : x
  2. Step 2: Convert to fraction form
    18,811.06/28,220.38 = 5,484.03/x
  3. Step 3: Cross multiply
    18,811.06x = 28,220.38 × 5,484.03
  4. Step 4: Simplify right side
    18,811.06x = 154,761,410.53
  5. Step 5: Solve for x
    x = 154,761,410.53/18,811.06
  6. Step 6: Final answer
    x = 8,227.15

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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.