Home / 19,699.73-27,191.69-12,148.43

Finding the Fourth Proportional to 19,699.73, 27,191.69 and 12,148.43

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Solution

The fourth proportional to 19,699.73, 27,191.69 and 12,148.43 is: 16,768.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.73 : 27,191.69 = 12,148.43 : x
  2. Step 2: Convert to fraction form
    19,699.73/27,191.69 = 12,148.43/x
  3. Step 3: Cross multiply
    19,699.73x = 27,191.69 × 12,148.43
  4. Step 4: Simplify right side
    19,699.73x = 330,336,145.85
  5. Step 5: Solve for x
    x = 330,336,145.85/19,699.73
  6. Step 6: Final answer
    x = 16,768.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.