Home / 19,159.12-28,727.22-7,458.64

Finding the Fourth Proportional to 19,159.12, 28,727.22 and 7,458.64

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Solution

The fourth proportional to 19,159.12, 28,727.22 and 7,458.64 is: 11,183.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159.12 : 28,727.22 = 7,458.64 : x
  2. Step 2: Convert to fraction form
    19,159.12/28,727.22 = 7,458.64/x
  3. Step 3: Cross multiply
    19,159.12x = 28,727.22 × 7,458.64
  4. Step 4: Simplify right side
    19,159.12x = 214,265,992.18
  5. Step 5: Solve for x
    x = 214,265,992.18/19,159.12
  6. Step 6: Final answer
    x = 11,183.50

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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.