Home / 11,512.13-15,887.78-6,795.53

Finding the Fourth Proportional to 11,512.13, 15,887.78 and 6,795.53

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Solution

The fourth proportional to 11,512.13, 15,887.78 and 6,795.53 is: 9,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.13 : 15,887.78 = 6,795.53 : x
  2. Step 2: Convert to fraction form
    11,512.13/15,887.78 = 6,795.53/x
  3. Step 3: Cross multiply
    11,512.13x = 15,887.78 × 6,795.53
  4. Step 4: Simplify right side
    11,512.13x = 107,965,885.62
  5. Step 5: Solve for x
    x = 107,965,885.62/11,512.13
  6. Step 6: Final answer
    x = 9,378.45

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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.