Home / 11,108.64-15,323.22-7,331.82

Finding the Fourth Proportional to 11,108.64, 15,323.22 and 7,331.82

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Solution

The fourth proportional to 11,108.64, 15,323.22 and 7,331.82 is: 10,113.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.64 : 15,323.22 = 7,331.82 : x
  2. Step 2: Convert to fraction form
    11,108.64/15,323.22 = 7,331.82/x
  3. Step 3: Cross multiply
    11,108.64x = 15,323.22 × 7,331.82
  4. Step 4: Simplify right side
    11,108.64x = 112,347,090.86
  5. Step 5: Solve for x
    x = 112,347,090.86/11,108.64
  6. Step 6: Final answer
    x = 10,113.49

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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.