Home / 11,162.16-15,402.62-6,447.96

Finding the Fourth Proportional to 11,162.16, 15,402.62 and 6,447.96

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Solution

The fourth proportional to 11,162.16, 15,402.62 and 6,447.96 is: 8,897.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,162.16 : 15,402.62 = 6,447.96 : x
  2. Step 2: Convert to fraction form
    11,162.16/15,402.62 = 6,447.96/x
  3. Step 3: Cross multiply
    11,162.16x = 15,402.62 × 6,447.96
  4. Step 4: Simplify right side
    11,162.16x = 99,315,477.66
  5. Step 5: Solve for x
    x = 99,315,477.66/11,162.16
  6. Step 6: Final answer
    x = 8,897.51

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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.