Home / 8,205.96-11,320.56-5,376.36

Finding the Fourth Proportional to 8,205.96, 11,320.56 and 5,376.36

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Solution

The fourth proportional to 8,205.96, 11,320.56 and 5,376.36 is: 7,416.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205.96 : 11,320.56 = 5,376.36 : x
  2. Step 2: Convert to fraction form
    8,205.96/11,320.56 = 5,376.36/x
  3. Step 3: Cross multiply
    8,205.96x = 11,320.56 × 5,376.36
  4. Step 4: Simplify right side
    8,205.96x = 60,863,405.96
  5. Step 5: Solve for x
    x = 60,863,405.96/8,205.96
  6. Step 6: Final answer
    x = 7,416.98

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Half scale
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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.