Home / 8,110.66-12,158.67-2,915.32

Finding the Fourth Proportional to 8,110.66, 12,158.67 and 2,915.32

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Solution

The fourth proportional to 8,110.66, 12,158.67 and 2,915.32 is: 4,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.66 : 12,158.67 = 2,915.32 : x
  2. Step 2: Convert to fraction form
    8,110.66/12,158.67 = 2,915.32/x
  3. Step 3: Cross multiply
    8,110.66x = 12,158.67 × 2,915.32
  4. Step 4: Simplify right side
    8,110.66x = 35,446,413.82
  5. Step 5: Solve for x
    x = 35,446,413.82/8,110.66
  6. Step 6: Final answer
    x = 4,370.35

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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.