Home / 13,967.20-20,950.98-3,578.68

Finding the Fourth Proportional to 13,967.20, 20,950.98 and 3,578.68

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Solution

The fourth proportional to 13,967.20, 20,950.98 and 3,578.68 is: 5,368.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,967.20 : 20,950.98 = 3,578.68 : x
  2. Step 2: Convert to fraction form
    13,967.20/20,950.98 = 3,578.68/x
  3. Step 3: Cross multiply
    13,967.20x = 20,950.98 × 3,578.68
  4. Step 4: Simplify right side
    13,967.20x = 74,976,853.11
  5. Step 5: Solve for x
    x = 74,976,853.11/13,967.20
  6. Step 6: Final answer
    x = 5,368.07

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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.