Home / 15,368.82-21,208.15-8,654.23

Finding the Fourth Proportional to 15,368.82, 21,208.15 and 8,654.23

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Solution

The fourth proportional to 15,368.82, 21,208.15 and 8,654.23 is: 11,942.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368.82 : 21,208.15 = 8,654.23 : x
  2. Step 2: Convert to fraction form
    15,368.82/21,208.15 = 8,654.23/x
  3. Step 3: Cross multiply
    15,368.82x = 21,208.15 × 8,654.23
  4. Step 4: Simplify right side
    15,368.82x = 183,540,207.97
  5. Step 5: Solve for x
    x = 183,540,207.97/15,368.82
  6. Step 6: Final answer
    x = 11,942.37

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Double scale
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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.