Home / 14,113.56-21,170.79-5,231.11

Finding the Fourth Proportional to 14,113.56, 21,170.79 and 5,231.11

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Solution

The fourth proportional to 14,113.56, 21,170.79 and 5,231.11 is: 7,846.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.56 : 21,170.79 = 5,231.11 : x
  2. Step 2: Convert to fraction form
    14,113.56/21,170.79 = 5,231.11/x
  3. Step 3: Cross multiply
    14,113.56x = 21,170.79 × 5,231.11
  4. Step 4: Simplify right side
    14,113.56x = 110,746,731.28
  5. Step 5: Solve for x
    x = 110,746,731.28/14,113.56
  6. Step 6: Final answer
    x = 7,846.83

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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.