Home / 11,108.15-15,328.80-6,072.55

Finding the Fourth Proportional to 11,108.15, 15,328.80 and 6,072.55

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Solution

The fourth proportional to 11,108.15, 15,328.80 and 6,072.55 is: 8,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.15 : 15,328.80 = 6,072.55 : x
  2. Step 2: Convert to fraction form
    11,108.15/15,328.80 = 6,072.55/x
  3. Step 3: Cross multiply
    11,108.15x = 15,328.80 × 6,072.55
  4. Step 4: Simplify right side
    11,108.15x = 93,084,904.44
  5. Step 5: Solve for x
    x = 93,084,904.44/11,108.15
  6. Step 6: Final answer
    x = 8,379.87

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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.