Home / 10,446.88-14,418.99-7,221.22

Finding the Fourth Proportional to 10,446.88, 14,418.99 and 7,221.22

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Solution

The fourth proportional to 10,446.88, 14,418.99 and 7,221.22 is: 9,966.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,446.88 : 14,418.99 = 7,221.22 : x
  2. Step 2: Convert to fraction form
    10,446.88/14,418.99 = 7,221.22/x
  3. Step 3: Cross multiply
    10,446.88x = 14,418.99 × 7,221.22
  4. Step 4: Simplify right side
    10,446.88x = 104,122,698.97
  5. Step 5: Solve for x
    x = 104,122,698.97/10,446.88
  6. Step 6: Final answer
    x = 9,966.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.