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Finding the Fourth Proportional to 10,994.80, 16,493.06 and 4,421.04

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Solution

The fourth proportional to 10,994.80, 16,493.06 and 4,421.04 is: 6,631.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,994.80 : 16,493.06 = 4,421.04 : x
  2. Step 2: Convert to fraction form
    10,994.80/16,493.06 = 4,421.04/x
  3. Step 3: Cross multiply
    10,994.80x = 16,493.06 × 4,421.04
  4. Step 4: Simplify right side
    10,994.80x = 72,916,512.07
  5. Step 5: Solve for x
    x = 72,916,512.07/10,994.80
  6. Step 6: Final answer
    x = 6,631.91

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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.