Home / 11,465.40-15,822.89-8,627.66

Finding the Fourth Proportional to 11,465.40, 15,822.89 and 8,627.66

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Solution

The fourth proportional to 11,465.40, 15,822.89 and 8,627.66 is: 11,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.40 : 15,822.89 = 8,627.66 : x
  2. Step 2: Convert to fraction form
    11,465.40/15,822.89 = 8,627.66/x
  3. Step 3: Cross multiply
    11,465.40x = 15,822.89 × 8,627.66
  4. Step 4: Simplify right side
    11,465.40x = 136,514,511.56
  5. Step 5: Solve for x
    x = 136,514,511.56/11,465.40
  6. Step 6: Final answer
    x = 11,906.66

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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.