Home / 11,272.66-16,909-10,587.60

Finding the Fourth Proportional to 11,272.66, 16,909 and 10,587.60

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Solution

The fourth proportional to 11,272.66, 16,909 and 10,587.60 is: 15,881.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.66 : 16,909 = 10,587.60 : x
  2. Step 2: Convert to fraction form
    11,272.66/16,909 = 10,587.60/x
  3. Step 3: Cross multiply
    11,272.66x = 16,909 × 10,587.60
  4. Step 4: Simplify right side
    11,272.66x = 179,025,728.40
  5. Step 5: Solve for x
    x = 179,025,728.40/11,272.66
  6. Step 6: Final answer
    x = 15,881.41

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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.