Home / 10,664.61-15,999.27-4,090.80

Finding the Fourth Proportional to 10,664.61, 15,999.27 and 4,090.80

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Solution

The fourth proportional to 10,664.61, 15,999.27 and 4,090.80 is: 6,137.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.61 : 15,999.27 = 4,090.80 : x
  2. Step 2: Convert to fraction form
    10,664.61/15,999.27 = 4,090.80/x
  3. Step 3: Cross multiply
    10,664.61x = 15,999.27 × 4,090.80
  4. Step 4: Simplify right side
    10,664.61x = 65,449,881.38
  5. Step 5: Solve for x
    x = 65,449,881.38/10,664.61
  6. Step 6: Final answer
    x = 6,137.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.