Home / 13,966.39-19,273.68-7,678.75

Finding the Fourth Proportional to 13,966.39, 19,273.68 and 7,678.75

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Solution

The fourth proportional to 13,966.39, 19,273.68 and 7,678.75 is: 10,596.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.39 : 19,273.68 = 7,678.75 : x
  2. Step 2: Convert to fraction form
    13,966.39/19,273.68 = 7,678.75/x
  3. Step 3: Cross multiply
    13,966.39x = 19,273.68 × 7,678.75
  4. Step 4: Simplify right side
    13,966.39x = 147,997,770.30
  5. Step 5: Solve for x
    x = 147,997,770.30/13,966.39
  6. Step 6: Final answer
    x = 10,596.71

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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.