Home / 13,972.70-20,960.93-5,086.88

Finding the Fourth Proportional to 13,972.70, 20,960.93 and 5,086.88

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Solution

The fourth proportional to 13,972.70, 20,960.93 and 5,086.88 is: 7,631.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.70 : 20,960.93 = 5,086.88 : x
  2. Step 2: Convert to fraction form
    13,972.70/20,960.93 = 5,086.88/x
  3. Step 3: Cross multiply
    13,972.70x = 20,960.93 × 5,086.88
  4. Step 4: Simplify right side
    13,972.70x = 106,625,634.55
  5. Step 5: Solve for x
    x = 106,625,634.55/13,972.70
  6. Step 6: Final answer
    x = 7,631.00

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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.