Home / 14,221.34-21,332.10-9,321.99

Finding the Fourth Proportional to 14,221.34, 21,332.10 and 9,321.99

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Solution

The fourth proportional to 14,221.34, 21,332.10 and 9,321.99 is: 13,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.34 : 21,332.10 = 9,321.99 : x
  2. Step 2: Convert to fraction form
    14,221.34/21,332.10 = 9,321.99/x
  3. Step 3: Cross multiply
    14,221.34x = 21,332.10 × 9,321.99
  4. Step 4: Simplify right side
    14,221.34x = 198,857,622.88
  5. Step 5: Solve for x
    x = 198,857,622.88/14,221.34
  6. Step 6: Final answer
    x = 13,983.05

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Similar ratio
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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.