Home / 6,921.47-9,551.33-3,936.95

Finding the Fourth Proportional to 6,921.47, 9,551.33 and 3,936.95

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Solution

The fourth proportional to 6,921.47, 9,551.33 and 3,936.95 is: 5,432.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.47 : 9,551.33 = 3,936.95 : x
  2. Step 2: Convert to fraction form
    6,921.47/9,551.33 = 3,936.95/x
  3. Step 3: Cross multiply
    6,921.47x = 9,551.33 × 3,936.95
  4. Step 4: Simplify right side
    6,921.47x = 37,603,088.96
  5. Step 5: Solve for x
    x = 37,603,088.96/6,921.47
  6. Step 6: Final answer
    x = 5,432.82

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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.