Home / 15,364.62-21,203.37-8,650.26

Finding the Fourth Proportional to 15,364.62, 21,203.37 and 8,650.26

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Solution

The fourth proportional to 15,364.62, 21,203.37 and 8,650.26 is: 11,937.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.62 : 21,203.37 = 8,650.26 : x
  2. Step 2: Convert to fraction form
    15,364.62/21,203.37 = 8,650.26/x
  3. Step 3: Cross multiply
    15,364.62x = 21,203.37 × 8,650.26
  4. Step 4: Simplify right side
    15,364.62x = 183,414,663.38
  5. Step 5: Solve for x
    x = 183,414,663.38/15,364.62
  6. Step 6: Final answer
    x = 11,937.47

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Double scale
Find fourth proportional to 15,365.62, 21,204.75 and 8,651.26
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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.