Home / 11,994.74-16,553.13-6,689.78

Finding the Fourth Proportional to 11,994.74, 16,553.13 and 6,689.78

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Solution

The fourth proportional to 11,994.74, 16,553.13 and 6,689.78 is: 9,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.74 : 16,553.13 = 6,689.78 : x
  2. Step 2: Convert to fraction form
    11,994.74/16,553.13 = 6,689.78/x
  3. Step 3: Cross multiply
    11,994.74x = 16,553.13 × 6,689.78
  4. Step 4: Simplify right side
    11,994.74x = 110,736,798.01
  5. Step 5: Solve for x
    x = 110,736,798.01/11,994.74
  6. Step 6: Final answer
    x = 9,232.11

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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.