Home / 7,391.82-10,189.71-6,117.42

Finding the Fourth Proportional to 7,391.82, 10,189.71 and 6,117.42

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Solution

The fourth proportional to 7,391.82, 10,189.71 and 6,117.42 is: 8,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.82 : 10,189.71 = 6,117.42 : x
  2. Step 2: Convert to fraction form
    7,391.82/10,189.71 = 6,117.42/x
  3. Step 3: Cross multiply
    7,391.82x = 10,189.71 × 6,117.42
  4. Step 4: Simplify right side
    7,391.82x = 62,334,735.75
  5. Step 5: Solve for x
    x = 62,334,735.75/7,391.82
  6. Step 6: Final answer
    x = 8,432.93

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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.