Home / 11,361.28-15,676.16-6,392.32

Finding the Fourth Proportional to 11,361.28, 15,676.16 and 6,392.32

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Solution

The fourth proportional to 11,361.28, 15,676.16 and 6,392.32 is: 8,820.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.28 : 15,676.16 = 6,392.32 : x
  2. Step 2: Convert to fraction form
    11,361.28/15,676.16 = 6,392.32/x
  3. Step 3: Cross multiply
    11,361.28x = 15,676.16 × 6,392.32
  4. Step 4: Simplify right side
    11,361.28x = 100,207,031.09
  5. Step 5: Solve for x
    x = 100,207,031.09/11,361.28
  6. Step 6: Final answer
    x = 8,820.05

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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.