Home / 14,691.75-21,988.89-13,378.54

Finding the Fourth Proportional to 14,691.75, 21,988.89 and 13,378.54

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Solution

The fourth proportional to 14,691.75, 21,988.89 and 13,378.54 is: 20,023.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,691.75 : 21,988.89 = 13,378.54 : x
  2. Step 2: Convert to fraction form
    14,691.75/21,988.89 = 13,378.54/x
  3. Step 3: Cross multiply
    14,691.75x = 21,988.89 × 13,378.54
  4. Step 4: Simplify right side
    14,691.75x = 294,179,189.45
  5. Step 5: Solve for x
    x = 294,179,189.45/14,691.75
  6. Step 6: Final answer
    x = 20,023.43

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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.