Home / 19,212.12-28,815.83-5,173.26

Finding the Fourth Proportional to 19,212.12, 28,815.83 and 5,173.26

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Solution

The fourth proportional to 19,212.12, 28,815.83 and 5,173.26 is: 7,759.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.12 : 28,815.83 = 5,173.26 : x
  2. Step 2: Convert to fraction form
    19,212.12/28,815.83 = 5,173.26/x
  3. Step 3: Cross multiply
    19,212.12x = 28,815.83 × 5,173.26
  4. Step 4: Simplify right side
    19,212.12x = 149,071,780.71
  5. Step 5: Solve for x
    x = 149,071,780.71/19,212.12
  6. Step 6: Final answer
    x = 7,759.26

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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.