Home / 8,106.28-11,180.92-7,835.32

Finding the Fourth Proportional to 8,106.28, 11,180.92 and 7,835.32

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Solution

The fourth proportional to 8,106.28, 11,180.92 and 7,835.32 is: 10,807.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.28 : 11,180.92 = 7,835.32 : x
  2. Step 2: Convert to fraction form
    8,106.28/11,180.92 = 7,835.32/x
  3. Step 3: Cross multiply
    8,106.28x = 11,180.92 × 7,835.32
  4. Step 4: Simplify right side
    8,106.28x = 87,606,086.09
  5. Step 5: Solve for x
    x = 87,606,086.09/8,106.28
  6. Step 6: Final answer
    x = 10,807.19

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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.