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Finding the Fourth Proportional to 11,994.40, 16,552.98 and 6,689.08

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Solution

The fourth proportional to 11,994.40, 16,552.98 and 6,689.08 is: 9,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.40 : 16,552.98 = 6,689.08 : x
  2. Step 2: Convert to fraction form
    11,994.40/16,552.98 = 6,689.08/x
  3. Step 3: Cross multiply
    11,994.40x = 16,552.98 × 6,689.08
  4. Step 4: Simplify right side
    11,994.40x = 110,724,207.46
  5. Step 5: Solve for x
    x = 110,724,207.46/11,994.40
  6. Step 6: Final answer
    x = 9,231.33

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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.