Home / 19,914.12-27,478.44-11,529

Finding the Fourth Proportional to 19,914.12, 27,478.44 and 11,529

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Solution

The fourth proportional to 19,914.12, 27,478.44 and 11,529 is: 15,908.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,914.12 : 27,478.44 = 11,529 : x
  2. Step 2: Convert to fraction form
    19,914.12/27,478.44 = 11,529/x
  3. Step 3: Cross multiply
    19,914.12x = 27,478.44 × 11,529
  4. Step 4: Simplify right side
    19,914.12x = 316,798,934.76
  5. Step 5: Solve for x
    x = 316,798,934.76/19,914.12
  6. Step 6: Final answer
    x = 15,908.26

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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.