Home / 14,186.35-21,270.39-6,790.63

Finding the Fourth Proportional to 14,186.35, 21,270.39 and 6,790.63

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Solution

The fourth proportional to 14,186.35, 21,270.39 and 6,790.63 is: 10,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,186.35 : 21,270.39 = 6,790.63 : x
  2. Step 2: Convert to fraction form
    14,186.35/21,270.39 = 6,790.63/x
  3. Step 3: Cross multiply
    14,186.35x = 21,270.39 × 6,790.63
  4. Step 4: Simplify right side
    14,186.35x = 144,439,348.45
  5. Step 5: Solve for x
    x = 144,439,348.45/14,186.35
  6. Step 6: Final answer
    x = 10,181.57

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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.