Home / 14,231.25-21,346.86-7,910.15

Finding the Fourth Proportional to 14,231.25, 21,346.86 and 7,910.15

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Solution

The fourth proportional to 14,231.25, 21,346.86 and 7,910.15 is: 11,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,231.25 : 21,346.86 = 7,910.15 : x
  2. Step 2: Convert to fraction form
    14,231.25/21,346.86 = 7,910.15/x
  3. Step 3: Cross multiply
    14,231.25x = 21,346.86 × 7,910.15
  4. Step 4: Simplify right side
    14,231.25x = 168,856,864.63
  5. Step 5: Solve for x
    x = 168,856,864.63/14,231.25
  6. Step 6: Final answer
    x = 11,865.22

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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.