Home / 13,310.76-19,970.04-3,950.80

Finding the Fourth Proportional to 13,310.76, 19,970.04 and 3,950.80

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Solution

The fourth proportional to 13,310.76, 19,970.04 and 3,950.80 is: 5,927.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.76 : 19,970.04 = 3,950.80 : x
  2. Step 2: Convert to fraction form
    13,310.76/19,970.04 = 3,950.80/x
  3. Step 3: Cross multiply
    13,310.76x = 19,970.04 × 3,950.80
  4. Step 4: Simplify right side
    13,310.76x = 78,897,634.03
  5. Step 5: Solve for x
    x = 78,897,634.03/13,310.76
  6. Step 6: Final answer
    x = 5,927.36

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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.