Home / 19,217.65-28,837.59-8,123.62

Finding the Fourth Proportional to 19,217.65, 28,837.59 and 8,123.62

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Solution

The fourth proportional to 19,217.65, 28,837.59 and 8,123.62 is: 12,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.65 : 28,837.59 = 8,123.62 : x
  2. Step 2: Convert to fraction form
    19,217.65/28,837.59 = 8,123.62/x
  3. Step 3: Cross multiply
    19,217.65x = 28,837.59 × 8,123.62
  4. Step 4: Simplify right side
    19,217.65x = 234,265,622.88
  5. Step 5: Solve for x
    x = 234,265,622.88/19,217.65
  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.