Home / 6,972.75-9,623.61-4,178.25

Finding the Fourth Proportional to 6,972.75, 9,623.61 and 4,178.25

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Solution

The fourth proportional to 6,972.75, 9,623.61 and 4,178.25 is: 5,766.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.75 : 9,623.61 = 4,178.25 : x
  2. Step 2: Convert to fraction form
    6,972.75/9,623.61 = 4,178.25/x
  3. Step 3: Cross multiply
    6,972.75x = 9,623.61 × 4,178.25
  4. Step 4: Simplify right side
    6,972.75x = 40,209,848.48
  5. Step 5: Solve for x
    x = 40,209,848.48/6,972.75
  6. Step 6: Final answer
    x = 5,766.71

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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.