Home / 19,778.10-29,668.97-6,631.66

Finding the Fourth Proportional to 19,778.10, 29,668.97 and 6,631.66

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Solution

The fourth proportional to 19,778.10, 29,668.97 and 6,631.66 is: 9,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.10 : 29,668.97 = 6,631.66 : x
  2. Step 2: Convert to fraction form
    19,778.10/29,668.97 = 6,631.66/x
  3. Step 3: Cross multiply
    19,778.10x = 29,668.97 × 6,631.66
  4. Step 4: Simplify right side
    19,778.10x = 196,754,521.59
  5. Step 5: Solve for x
    x = 196,754,521.59/19,778.10
  6. Step 6: Final answer
    x = 9,948.10

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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.