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Finding the Fourth Proportional to 6,342.67, 9,513.90 and 1,959.61

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Solution

The fourth proportional to 6,342.67, 9,513.90 and 1,959.61 is: 2,939.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342.67 : 9,513.90 = 1,959.61 : x
  2. Step 2: Convert to fraction form
    6,342.67/9,513.90 = 1,959.61/x
  3. Step 3: Cross multiply
    6,342.67x = 9,513.90 × 1,959.61
  4. Step 4: Simplify right side
    6,342.67x = 18,643,533.58
  5. Step 5: Solve for x
    x = 18,643,533.58/6,342.67
  6. Step 6: Final answer
    x = 2,939.38

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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.