Home / 19,860.83-29,745.86-9,479.87

Finding the Fourth Proportional to 19,860.83, 29,745.86 and 9,479.87

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Solution

The fourth proportional to 19,860.83, 29,745.86 and 9,479.87 is: 14,198.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.83 : 29,745.86 = 9,479.87 : x
  2. Step 2: Convert to fraction form
    19,860.83/29,745.86 = 9,479.87/x
  3. Step 3: Cross multiply
    19,860.83x = 29,745.86 × 9,479.87
  4. Step 4: Simplify right side
    19,860.83x = 281,986,737.11
  5. Step 5: Solve for x
    x = 281,986,737.11/19,860.83
  6. Step 6: Final answer
    x = 14,198.14

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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.