Home / 11,129.27-15,353.19-6,410.81

Finding the Fourth Proportional to 11,129.27, 15,353.19 and 6,410.81

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Solution

The fourth proportional to 11,129.27, 15,353.19 and 6,410.81 is: 8,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.27 : 15,353.19 = 6,410.81 : x
  2. Step 2: Convert to fraction form
    11,129.27/15,353.19 = 6,410.81/x
  3. Step 3: Cross multiply
    11,129.27x = 15,353.19 × 6,410.81
  4. Step 4: Simplify right side
    11,129.27x = 98,426,307.22
  5. Step 5: Solve for x
    x = 98,426,307.22/11,129.27
  6. Step 6: Final answer
    x = 8,843.92

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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.