Home / 15,665.84-21,606.26-13,773.37

Finding the Fourth Proportional to 15,665.84, 21,606.26 and 13,773.37

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Solution

The fourth proportional to 15,665.84, 21,606.26 and 13,773.37 is: 18,996.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,665.84 : 21,606.26 = 13,773.37 : x
  2. Step 2: Convert to fraction form
    15,665.84/21,606.26 = 13,773.37/x
  3. Step 3: Cross multiply
    15,665.84x = 21,606.26 × 13,773.37
  4. Step 4: Simplify right side
    15,665.84x = 297,591,013.30
  5. Step 5: Solve for x
    x = 297,591,013.30/15,665.84
  6. Step 6: Final answer
    x = 18,996.17

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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.