Home / 19,778.38-29,668.48-11,006.69

Finding the Fourth Proportional to 19,778.38, 29,668.48 and 11,006.69

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Solution

The fourth proportional to 19,778.38, 29,668.48 and 11,006.69 is: 16,510.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.38 : 29,668.48 = 11,006.69 : x
  2. Step 2: Convert to fraction form
    19,778.38/29,668.48 = 11,006.69/x
  3. Step 3: Cross multiply
    19,778.38x = 29,668.48 × 11,006.69
  4. Step 4: Simplify right side
    19,778.38x = 326,551,586.27
  5. Step 5: Solve for x
    x = 326,551,586.27/19,778.38
  6. Step 6: Final answer
    x = 16,510.53

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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.