Home / 19,605.39-29,408.13-7,761.95

Finding the Fourth Proportional to 19,605.39, 29,408.13 and 7,761.95

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Solution

The fourth proportional to 19,605.39, 29,408.13 and 7,761.95 is: 11,642.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.39 : 29,408.13 = 7,761.95 : x
  2. Step 2: Convert to fraction form
    19,605.39/29,408.13 = 7,761.95/x
  3. Step 3: Cross multiply
    19,605.39x = 29,408.13 × 7,761.95
  4. Step 4: Simplify right side
    19,605.39x = 228,264,447.86
  5. Step 5: Solve for x
    x = 228,264,447.86/19,605.39
  6. Step 6: Final answer
    x = 11,642.94

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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.