Home / 19,199.65-28,734.45-11,808.79

Finding the Fourth Proportional to 19,199.65, 28,734.45 and 11,808.79

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Solution

The fourth proportional to 19,199.65, 28,734.45 and 11,808.79 is: 17,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.65 : 28,734.45 = 11,808.79 : x
  2. Step 2: Convert to fraction form
    19,199.65/28,734.45 = 11,808.79/x
  3. Step 3: Cross multiply
    19,199.65x = 28,734.45 × 11,808.79
  4. Step 4: Simplify right side
    19,199.65x = 339,319,085.82
  5. Step 5: Solve for x
    x = 339,319,085.82/19,199.65
  6. Step 6: Final answer
    x = 17,673.19

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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.