Home / 11,153.78-15,392.37-6,117.66

Finding the Fourth Proportional to 11,153.78, 15,392.37 and 6,117.66

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Solution

The fourth proportional to 11,153.78, 15,392.37 and 6,117.66 is: 8,442.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.78 : 15,392.37 = 6,117.66 : x
  2. Step 2: Convert to fraction form
    11,153.78/15,392.37 = 6,117.66/x
  3. Step 3: Cross multiply
    11,153.78x = 15,392.37 × 6,117.66
  4. Step 4: Simplify right side
    11,153.78x = 94,165,286.25
  5. Step 5: Solve for x
    x = 94,165,286.25/11,153.78
  6. Step 6: Final answer
    x = 8,442.46

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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.