Home / 11,142.35-16,704.29-5,216.32

Finding the Fourth Proportional to 11,142.35, 16,704.29 and 5,216.32

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Solution

The fourth proportional to 11,142.35, 16,704.29 and 5,216.32 is: 7,820.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.35 : 16,704.29 = 5,216.32 : x
  2. Step 2: Convert to fraction form
    11,142.35/16,704.29 = 5,216.32/x
  3. Step 3: Cross multiply
    11,142.35x = 16,704.29 × 5,216.32
  4. Step 4: Simplify right side
    11,142.35x = 87,134,955.93
  5. Step 5: Solve for x
    x = 87,134,955.93/11,142.35
  6. Step 6: Final answer
    x = 7,820.16

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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.