Home / 19,151.66-28,726.74-9,791.57

Finding the Fourth Proportional to 19,151.66, 28,726.74 and 9,791.57

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Solution

The fourth proportional to 19,151.66, 28,726.74 and 9,791.57 is: 14,686.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.66 : 28,726.74 = 9,791.57 : x
  2. Step 2: Convert to fraction form
    19,151.66/28,726.74 = 9,791.57/x
  3. Step 3: Cross multiply
    19,151.66x = 28,726.74 × 9,791.57
  4. Step 4: Simplify right side
    19,151.66x = 281,279,885.58
  5. Step 5: Solve for x
    x = 281,279,885.58/19,151.66
  6. Step 6: Final answer
    x = 14,686.97

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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.