Home / 14,161.32-21,222.54-7,221.24

Finding the Fourth Proportional to 14,161.32, 21,222.54 and 7,221.24

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Solution

The fourth proportional to 14,161.32, 21,222.54 and 7,221.24 is: 10,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,161.32 : 21,222.54 = 7,221.24 : x
  2. Step 2: Convert to fraction form
    14,161.32/21,222.54 = 7,221.24/x
  3. Step 3: Cross multiply
    14,161.32x = 21,222.54 × 7,221.24
  4. Step 4: Simplify right side
    14,161.32x = 153,253,054.75
  5. Step 5: Solve for x
    x = 153,253,054.75/14,161.32
  6. Step 6: Final answer
    x = 10,821.95

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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.