Home / 11,466.78-15,824.48-6,989.51

Finding the Fourth Proportional to 11,466.78, 15,824.48 and 6,989.51

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Solution

The fourth proportional to 11,466.78, 15,824.48 and 6,989.51 is: 9,645.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,466.78 : 15,824.48 = 6,989.51 : x
  2. Step 2: Convert to fraction form
    11,466.78/15,824.48 = 6,989.51/x
  3. Step 3: Cross multiply
    11,466.78x = 15,824.48 × 6,989.51
  4. Step 4: Simplify right side
    11,466.78x = 110,605,247.13
  5. Step 5: Solve for x
    x = 110,605,247.13/11,466.78
  6. Step 6: Final answer
    x = 9,645.71

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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.