Home / 11,144.64-15,379.60-6,108.72

Finding the Fourth Proportional to 11,144.64, 15,379.60 and 6,108.72

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Solution

The fourth proportional to 11,144.64, 15,379.60 and 6,108.72 is: 8,430.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.64 : 15,379.60 = 6,108.72 : x
  2. Step 2: Convert to fraction form
    11,144.64/15,379.60 = 6,108.72/x
  3. Step 3: Cross multiply
    11,144.64x = 15,379.60 × 6,108.72
  4. Step 4: Simplify right side
    11,144.64x = 93,949,670.11
  5. Step 5: Solve for x
    x = 93,949,670.11/11,144.64
  6. Step 6: Final answer
    x = 8,430.03

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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.