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Finding the Fourth Proportional to 6,667.68, 9,199.80 and 4,309.38

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Solution

The fourth proportional to 6,667.68, 9,199.80 and 4,309.38 is: 5,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,667.68 : 9,199.80 = 4,309.38 : x
  2. Step 2: Convert to fraction form
    6,667.68/9,199.80 = 4,309.38/x
  3. Step 3: Cross multiply
    6,667.68x = 9,199.80 × 4,309.38
  4. Step 4: Simplify right side
    6,667.68x = 39,645,434.12
  5. Step 5: Solve for x
    x = 39,645,434.12/6,667.68
  6. Step 6: Final answer
    x = 5,945.91

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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.