Home / 13,909.01-19,194.44-7,621.38

Finding the Fourth Proportional to 13,909.01, 19,194.44 and 7,621.38

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Solution

The fourth proportional to 13,909.01, 19,194.44 and 7,621.38 is: 10,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.01 : 19,194.44 = 7,621.38 : x
  2. Step 2: Convert to fraction form
    13,909.01/19,194.44 = 7,621.38/x
  3. Step 3: Cross multiply
    13,909.01x = 19,194.44 × 7,621.38
  4. Step 4: Simplify right side
    13,909.01x = 146,288,083.02
  5. Step 5: Solve for x
    x = 146,288,083.02/13,909.01
  6. Step 6: Final answer
    x = 10,517.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.