Home / 13,181.67-19,771.04-3,320.95

Finding the Fourth Proportional to 13,181.67, 19,771.04 and 3,320.95

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Solution

The fourth proportional to 13,181.67, 19,771.04 and 3,320.95 is: 4,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.67 : 19,771.04 = 3,320.95 : x
  2. Step 2: Convert to fraction form
    13,181.67/19,771.04 = 3,320.95/x
  3. Step 3: Cross multiply
    13,181.67x = 19,771.04 × 3,320.95
  4. Step 4: Simplify right side
    13,181.67x = 65,658,594.16
  5. Step 5: Solve for x
    x = 65,658,594.16/13,181.67
  6. Step 6: Final answer
    x = 4,981.05

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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.