Home / 13,770.06-18,994.17-12,005.88

Finding the Fourth Proportional to 13,770.06, 18,994.17 and 12,005.88

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Solution

The fourth proportional to 13,770.06, 18,994.17 and 12,005.88 is: 16,560.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.06 : 18,994.17 = 12,005.88 : x
  2. Step 2: Convert to fraction form
    13,770.06/18,994.17 = 12,005.88/x
  3. Step 3: Cross multiply
    13,770.06x = 18,994.17 × 12,005.88
  4. Step 4: Simplify right side
    13,770.06x = 228,041,725.72
  5. Step 5: Solve for x
    x = 228,041,725.72/13,770.06
  6. Step 6: Final answer
    x = 16,560.69

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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.