Home / 11,162.36-15,406.05-8,343.86

Finding the Fourth Proportional to 11,162.36, 15,406.05 and 8,343.86

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Solution

The fourth proportional to 11,162.36, 15,406.05 and 8,343.86 is: 11,516.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,162.36 : 15,406.05 = 8,343.86 : x
  2. Step 2: Convert to fraction form
    11,162.36/15,406.05 = 8,343.86/x
  3. Step 3: Cross multiply
    11,162.36x = 15,406.05 × 8,343.86
  4. Step 4: Simplify right side
    11,162.36x = 128,545,918.34
  5. Step 5: Solve for x
    x = 128,545,918.34/11,162.36
  6. Step 6: Final answer
    x = 11,516.02

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1.5x scale

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.