Home / 19,217.66-28,837.60-8,123.62

Finding the Fourth Proportional to 19,217.66, 28,837.60 and 8,123.62

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Solution

The fourth proportional to 19,217.66, 28,837.60 and 8,123.62 is: 12,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.66 : 28,837.60 = 8,123.62 : x
  2. Step 2: Convert to fraction form
    19,217.66/28,837.60 = 8,123.62/x
  3. Step 3: Cross multiply
    19,217.66x = 28,837.60 × 8,123.62
  4. Step 4: Simplify right side
    19,217.66x = 234,265,704.11
  5. Step 5: Solve for x
    x = 234,265,704.11/19,217.66
  6. Step 6: Final answer
    x = 12,190.13

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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.