Home / 13,201.85-19,781.94-4,870.40

Finding the Fourth Proportional to 13,201.85, 19,781.94 and 4,870.40

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Solution

The fourth proportional to 13,201.85, 19,781.94 and 4,870.40 is: 7,297.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.85 : 19,781.94 = 4,870.40 : x
  2. Step 2: Convert to fraction form
    13,201.85/19,781.94 = 4,870.40/x
  3. Step 3: Cross multiply
    13,201.85x = 19,781.94 × 4,870.40
  4. Step 4: Simplify right side
    13,201.85x = 96,345,960.58
  5. Step 5: Solve for x
    x = 96,345,960.58/13,201.85
  6. Step 6: Final answer
    x = 7,297.91

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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.