Home / 11,149.12-15,385.38-6,113.22

Finding the Fourth Proportional to 11,149.12, 15,385.38 and 6,113.22

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Solution

The fourth proportional to 11,149.12, 15,385.38 and 6,113.22 is: 8,436.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.12 : 15,385.38 = 6,113.22 : x
  2. Step 2: Convert to fraction form
    11,149.12/15,385.38 = 6,113.22/x
  3. Step 3: Cross multiply
    11,149.12x = 15,385.38 × 6,113.22
  4. Step 4: Simplify right side
    11,149.12x = 94,054,212.72
  5. Step 5: Solve for x
    x = 94,054,212.72/11,149.12
  6. Step 6: Final answer
    x = 8,436.02

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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.