Home / 11,621.76-16,040.36-6,905.13

Finding the Fourth Proportional to 11,621.76, 16,040.36 and 6,905.13

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Solution

The fourth proportional to 11,621.76, 16,040.36 and 6,905.13 is: 9,530.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.76 : 16,040.36 = 6,905.13 : x
  2. Step 2: Convert to fraction form
    11,621.76/16,040.36 = 6,905.13/x
  3. Step 3: Cross multiply
    11,621.76x = 16,040.36 × 6,905.13
  4. Step 4: Simplify right side
    11,621.76x = 110,760,736.52
  5. Step 5: Solve for x
    x = 110,760,736.52/11,621.76
  6. Step 6: Final answer
    x = 9,530.46

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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.