Home / 18,720.41-28,071.22-6,236.04

Finding the Fourth Proportional to 18,720.41, 28,071.22 and 6,236.04

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Solution

The fourth proportional to 18,720.41, 28,071.22 and 6,236.04 is: 9,350.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.41 : 28,071.22 = 6,236.04 : x
  2. Step 2: Convert to fraction form
    18,720.41/28,071.22 = 6,236.04/x
  3. Step 3: Cross multiply
    18,720.41x = 28,071.22 × 6,236.04
  4. Step 4: Simplify right side
    18,720.41x = 175,053,235.18
  5. Step 5: Solve for x
    x = 175,053,235.18/18,720.41
  6. Step 6: Final answer
    x = 9,350.93

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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.