Home / 19,892.12-27,448.08-11,507

Finding the Fourth Proportional to 19,892.12, 27,448.08 and 11,507

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Solution

The fourth proportional to 19,892.12, 27,448.08 and 11,507 is: 15,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,892.12 : 27,448.08 = 11,507 : x
  2. Step 2: Convert to fraction form
    19,892.12/27,448.08 = 11,507/x
  3. Step 3: Cross multiply
    19,892.12x = 27,448.08 × 11,507
  4. Step 4: Simplify right side
    19,892.12x = 315,845,056.56
  5. Step 5: Solve for x
    x = 315,845,056.56/19,892.12
  6. Step 6: Final answer
    x = 15,877.90

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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.