Home / 11,966.86-17,911.16-8,803.45

Finding the Fourth Proportional to 11,966.86, 17,911.16 and 8,803.45

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Solution

The fourth proportional to 11,966.86, 17,911.16 and 8,803.45 is: 13,176.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.86 : 17,911.16 = 8,803.45 : x
  2. Step 2: Convert to fraction form
    11,966.86/17,911.16 = 8,803.45/x
  3. Step 3: Cross multiply
    11,966.86x = 17,911.16 × 8,803.45
  4. Step 4: Simplify right side
    11,966.86x = 157,679,979.87
  5. Step 5: Solve for x
    x = 157,679,979.87/11,966.86
  6. Step 6: Final answer
    x = 13,176.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.