Home / 7,741.36-11,579.51-7,180.49

Finding the Fourth Proportional to 7,741.36, 11,579.51 and 7,180.49

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Solution

The fourth proportional to 7,741.36, 11,579.51 and 7,180.49 is: 10,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,741.36 : 11,579.51 = 7,180.49 : x
  2. Step 2: Convert to fraction form
    7,741.36/11,579.51 = 7,180.49/x
  3. Step 3: Cross multiply
    7,741.36x = 11,579.51 × 7,180.49
  4. Step 4: Simplify right side
    7,741.36x = 83,146,515.81
  5. Step 5: Solve for x
    x = 83,146,515.81/7,741.36
  6. Step 6: Final answer
    x = 10,740.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.