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Finding the Fourth Proportional to 11,273.31, 15,547.73 and 8,447.31

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Solution

The fourth proportional to 11,273.31, 15,547.73 and 8,447.31 is: 11,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,273.31 : 15,547.73 = 8,447.31 : x
  2. Step 2: Convert to fraction form
    11,273.31/15,547.73 = 8,447.31/x
  3. Step 3: Cross multiply
    11,273.31x = 15,547.73 × 8,447.31
  4. Step 4: Simplify right side
    11,273.31x = 131,336,452.87
  5. Step 5: Solve for x
    x = 131,336,452.87/11,273.31
  6. Step 6: Final answer
    x = 11,650.21

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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.