Home / 8,124.16-11,212.96-5,329.60

Finding the Fourth Proportional to 8,124.16, 11,212.96 and 5,329.60

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Solution

The fourth proportional to 8,124.16, 11,212.96 and 5,329.60 is: 7,355.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.16 : 11,212.96 = 5,329.60 : x
  2. Step 2: Convert to fraction form
    8,124.16/11,212.96 = 5,329.60/x
  3. Step 3: Cross multiply
    8,124.16x = 11,212.96 × 5,329.60
  4. Step 4: Simplify right side
    8,124.16x = 59,760,591.62
  5. Step 5: Solve for x
    x = 59,760,591.62/8,124.16
  6. Step 6: Final answer
    x = 7,355.91

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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.