Home / 11,149.42-15,387.48-6,370.12

Finding the Fourth Proportional to 11,149.42, 15,387.48 and 6,370.12

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Solution

The fourth proportional to 11,149.42, 15,387.48 and 6,370.12 is: 8,791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.42 : 15,387.48 = 6,370.12 : x
  2. Step 2: Convert to fraction form
    11,149.42/15,387.48 = 6,370.12/x
  3. Step 3: Cross multiply
    11,149.42x = 15,387.48 × 6,370.12
  4. Step 4: Simplify right side
    11,149.42x = 98,019,985.31
  5. Step 5: Solve for x
    x = 98,019,985.31/11,149.42
  6. Step 6: Final answer
    x = 8,791.49

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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.