Home / 11,163.02-15,388.52-8,505.82

Finding the Fourth Proportional to 11,163.02, 15,388.52 and 8,505.82

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Solution

The fourth proportional to 11,163.02, 15,388.52 and 8,505.82 is: 11,725.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.02 : 15,388.52 = 8,505.82 : x
  2. Step 2: Convert to fraction form
    11,163.02/15,388.52 = 8,505.82/x
  3. Step 3: Cross multiply
    11,163.02x = 15,388.52 × 8,505.82
  4. Step 4: Simplify right side
    11,163.02x = 130,891,981.19
  5. Step 5: Solve for x
    x = 130,891,981.19/11,163.02
  6. Step 6: Final answer
    x = 11,725.50

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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.