Home / 13,910.66-19,196.71-7,622.90

Finding the Fourth Proportional to 13,910.66, 19,196.71 and 7,622.90

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Solution

The fourth proportional to 13,910.66, 19,196.71 and 7,622.90 is: 10,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.66 : 19,196.71 = 7,622.90 : x
  2. Step 2: Convert to fraction form
    13,910.66/19,196.71 = 7,622.90/x
  3. Step 3: Cross multiply
    13,910.66x = 19,196.71 × 7,622.90
  4. Step 4: Simplify right side
    13,910.66x = 146,334,504.68
  5. Step 5: Solve for x
    x = 146,334,504.68/13,910.66
  6. Step 6: Final answer
    x = 10,519.60

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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.