Home / 13,972.06-20,954.84-4,108.70

Finding the Fourth Proportional to 13,972.06, 20,954.84 and 4,108.70

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Solution

The fourth proportional to 13,972.06, 20,954.84 and 4,108.70 is: 6,162.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.06 : 20,954.84 = 4,108.70 : x
  2. Step 2: Convert to fraction form
    13,972.06/20,954.84 = 4,108.70/x
  3. Step 3: Cross multiply
    13,972.06x = 20,954.84 × 4,108.70
  4. Step 4: Simplify right side
    13,972.06x = 86,097,151.11
  5. Step 5: Solve for x
    x = 86,097,151.11/13,972.06
  6. Step 6: Final answer
    x = 6,162.09

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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.