Home / 11,199.84-15,456.21-6,725.60

Finding the Fourth Proportional to 11,199.84, 15,456.21 and 6,725.60

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Solution

The fourth proportional to 11,199.84, 15,456.21 and 6,725.60 is: 9,281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,199.84 : 15,456.21 = 6,725.60 : x
  2. Step 2: Convert to fraction form
    11,199.84/15,456.21 = 6,725.60/x
  3. Step 3: Cross multiply
    11,199.84x = 15,456.21 × 6,725.60
  4. Step 4: Simplify right side
    11,199.84x = 103,952,208.69
  5. Step 5: Solve for x
    x = 103,952,208.69/11,199.84
  6. Step 6: Final answer
    x = 9,281.58

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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.