Home / 11,440.53-15,779.01-7,662.48

Finding the Fourth Proportional to 11,440.53, 15,779.01 and 7,662.48

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Solution

The fourth proportional to 11,440.53, 15,779.01 and 7,662.48 is: 10,568.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.53 : 15,779.01 = 7,662.48 : x
  2. Step 2: Convert to fraction form
    11,440.53/15,779.01 = 7,662.48/x
  3. Step 3: Cross multiply
    11,440.53x = 15,779.01 × 7,662.48
  4. Step 4: Simplify right side
    11,440.53x = 120,906,348.54
  5. Step 5: Solve for x
    x = 120,906,348.54/11,440.53
  6. Step 6: Final answer
    x = 10,568.25

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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.