Home / 12,951.14-19,426.71-4,186.05

Finding the Fourth Proportional to 12,951.14, 19,426.71 and 4,186.05

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Solution

The fourth proportional to 12,951.14, 19,426.71 and 4,186.05 is: 6,279.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.14 : 19,426.71 = 4,186.05 : x
  2. Step 2: Convert to fraction form
    12,951.14/19,426.71 = 4,186.05/x
  3. Step 3: Cross multiply
    12,951.14x = 19,426.71 × 4,186.05
  4. Step 4: Simplify right side
    12,951.14x = 81,321,274.38
  5. Step 5: Solve for x
    x = 81,321,274.38/12,951.14
  6. Step 6: Final answer
    x = 6,279.08

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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.