Home / 11,272.49-15,553.23-7,288.80

Finding the Fourth Proportional to 11,272.49, 15,553.23 and 7,288.80

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Solution

The fourth proportional to 11,272.49, 15,553.23 and 7,288.80 is: 10,056.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.49 : 15,553.23 = 7,288.80 : x
  2. Step 2: Convert to fraction form
    11,272.49/15,553.23 = 7,288.80/x
  3. Step 3: Cross multiply
    11,272.49x = 15,553.23 × 7,288.80
  4. Step 4: Simplify right side
    11,272.49x = 113,364,489.90
  5. Step 5: Solve for x
    x = 113,364,489.90/11,272.49
  6. Step 6: Final answer
    x = 10,056.74

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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.