Home / 8,377.44-11,535.84-7,120.32

Finding the Fourth Proportional to 8,377.44, 11,535.84 and 7,120.32

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Solution

The fourth proportional to 8,377.44, 11,535.84 and 7,120.32 is: 9,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.44 : 11,535.84 = 7,120.32 : x
  2. Step 2: Convert to fraction form
    8,377.44/11,535.84 = 7,120.32/x
  3. Step 3: Cross multiply
    8,377.44x = 11,535.84 × 7,120.32
  4. Step 4: Simplify right side
    8,377.44x = 82,138,872.27
  5. Step 5: Solve for x
    x = 82,138,872.27/8,377.44
  6. Step 6: Final answer
    x = 9,804.77

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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.