Home / 13,770.58-18,996.12-8,725.90

Finding the Fourth Proportional to 13,770.58, 18,996.12 and 8,725.90

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Solution

The fourth proportional to 13,770.58, 18,996.12 and 8,725.90 is: 12,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.58 : 18,996.12 = 8,725.90 : x
  2. Step 2: Convert to fraction form
    13,770.58/18,996.12 = 8,725.90/x
  3. Step 3: Cross multiply
    13,770.58x = 18,996.12 × 8,725.90
  4. Step 4: Simplify right side
    13,770.58x = 165,758,243.51
  5. Step 5: Solve for x
    x = 165,758,243.51/13,770.58
  6. Step 6: Final answer
    x = 12,037.13

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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.