Home / 11,353.86-15,671.32-7,997.66

Finding the Fourth Proportional to 11,353.86, 15,671.32 and 7,997.66

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Solution

The fourth proportional to 11,353.86, 15,671.32 and 7,997.66 is: 11,038.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,353.86 : 15,671.32 = 7,997.66 : x
  2. Step 2: Convert to fraction form
    11,353.86/15,671.32 = 7,997.66/x
  3. Step 3: Cross multiply
    11,353.86x = 15,671.32 × 7,997.66
  4. Step 4: Simplify right side
    11,353.86x = 125,333,889.11
  5. Step 5: Solve for x
    x = 125,333,889.11/11,353.86
  6. Step 6: Final answer
    x = 11,038.88

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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.