Home / 11,512.32-15,887.36-6,544.64

Finding the Fourth Proportional to 11,512.32, 15,887.36 and 6,544.64

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Solution

The fourth proportional to 11,512.32, 15,887.36 and 6,544.64 is: 9,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.32 : 15,887.36 = 6,544.64 : x
  2. Step 2: Convert to fraction form
    11,512.32/15,887.36 = 6,544.64/x
  3. Step 3: Cross multiply
    11,512.32x = 15,887.36 × 6,544.64
  4. Step 4: Simplify right side
    11,512.32x = 103,977,051.75
  5. Step 5: Solve for x
    x = 103,977,051.75/11,512.32
  6. Step 6: Final answer
    x = 9,031.81

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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.