Home / 6,125.85-9,178.70-5,615.19

Finding the Fourth Proportional to 6,125.85, 9,178.70 and 5,615.19

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Solution

The fourth proportional to 6,125.85, 9,178.70 and 5,615.19 is: 8,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,125.85 : 9,178.70 = 5,615.19 : x
  2. Step 2: Convert to fraction form
    6,125.85/9,178.70 = 5,615.19/x
  3. Step 3: Cross multiply
    6,125.85x = 9,178.70 × 5,615.19
  4. Step 4: Simplify right side
    6,125.85x = 51,540,116.38
  5. Step 5: Solve for x
    x = 51,540,116.38/6,125.85
  6. Step 6: Final answer
    x = 8,413.55

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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.