Home / 15,654.34-21,603.82-8,581.06

Finding the Fourth Proportional to 15,654.34, 21,603.82 and 8,581.06

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Solution

The fourth proportional to 15,654.34, 21,603.82 and 8,581.06 is: 11,842.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.34 : 21,603.82 = 8,581.06 : x
  2. Step 2: Convert to fraction form
    15,654.34/21,603.82 = 8,581.06/x
  3. Step 3: Cross multiply
    15,654.34x = 21,603.82 × 8,581.06
  4. Step 4: Simplify right side
    15,654.34x = 185,383,600.19
  5. Step 5: Solve for x
    x = 185,383,600.19/15,654.34
  6. Step 6: Final answer
    x = 11,842.32

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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.