Home / 11,204.64-15,468.84-7,761.60

Finding the Fourth Proportional to 11,204.64, 15,468.84 and 7,761.60

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Solution

The fourth proportional to 11,204.64, 15,468.84 and 7,761.60 is: 10,715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,204.64 : 15,468.84 = 7,761.60 : x
  2. Step 2: Convert to fraction form
    11,204.64/15,468.84 = 7,761.60/x
  3. Step 3: Cross multiply
    11,204.64x = 15,468.84 × 7,761.60
  4. Step 4: Simplify right side
    11,204.64x = 120,062,948.54
  5. Step 5: Solve for x
    x = 120,062,948.54/11,204.64
  6. Step 6: Final answer
    x = 10,715.47

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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.