Home / 13,721.14-18,932.68-8,056.13

Finding the Fourth Proportional to 13,721.14, 18,932.68 and 8,056.13

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Solution

The fourth proportional to 13,721.14, 18,932.68 and 8,056.13 is: 11,116.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.14 : 18,932.68 = 8,056.13 : x
  2. Step 2: Convert to fraction form
    13,721.14/18,932.68 = 8,056.13/x
  3. Step 3: Cross multiply
    13,721.14x = 18,932.68 × 8,056.13
  4. Step 4: Simplify right side
    13,721.14x = 152,524,131.33
  5. Step 5: Solve for x
    x = 152,524,131.33/13,721.14
  6. Step 6: Final answer
    x = 11,116.00

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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.