Home / 15,691.26-21,654.54-8,617.98

Finding the Fourth Proportional to 15,691.26, 21,654.54 and 8,617.98

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Solution

The fourth proportional to 15,691.26, 21,654.54 and 8,617.98 is: 11,893.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,691.26 : 21,654.54 = 8,617.98 : x
  2. Step 2: Convert to fraction form
    15,691.26/21,654.54 = 8,617.98/x
  3. Step 3: Cross multiply
    15,691.26x = 21,654.54 × 8,617.98
  4. Step 4: Simplify right side
    15,691.26x = 186,618,392.63
  5. Step 5: Solve for x
    x = 186,618,392.63/15,691.26
  6. Step 6: Final answer
    x = 11,893.14

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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.