Home / 12,553.13-17,322.63-6,887.79

Finding the Fourth Proportional to 12,553.13, 17,322.63 and 6,887.79

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Solution

The fourth proportional to 12,553.13, 17,322.63 and 6,887.79 is: 9,504.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.13 : 17,322.63 = 6,887.79 : x
  2. Step 2: Convert to fraction form
    12,553.13/17,322.63 = 6,887.79/x
  3. Step 3: Cross multiply
    12,553.13x = 17,322.63 × 6,887.79
  4. Step 4: Simplify right side
    12,553.13x = 119,314,637.69
  5. Step 5: Solve for x
    x = 119,314,637.69/12,553.13
  6. Step 6: Final answer
    x = 9,504.78

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Similar ratio
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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.