Home / 19,191.25-28,818.13-11,842.42

Finding the Fourth Proportional to 19,191.25, 28,818.13 and 11,842.42

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Solution

The fourth proportional to 19,191.25, 28,818.13 and 11,842.42 is: 17,782.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.25 : 28,818.13 = 11,842.42 : x
  2. Step 2: Convert to fraction form
    19,191.25/28,818.13 = 11,842.42/x
  3. Step 3: Cross multiply
    19,191.25x = 28,818.13 × 11,842.42
  4. Step 4: Simplify right side
    19,191.25x = 341,276,399.07
  5. Step 5: Solve for x
    x = 341,276,399.07/19,191.25
  6. Step 6: Final answer
    x = 17,782.92

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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.