Home / 8,122.86-11,207.63-4,936.10

Finding the Fourth Proportional to 8,122.86, 11,207.63 and 4,936.10

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Solution

The fourth proportional to 8,122.86, 11,207.63 and 4,936.10 is: 6,810.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.86 : 11,207.63 = 4,936.10 : x
  2. Step 2: Convert to fraction form
    8,122.86/11,207.63 = 4,936.10/x
  3. Step 3: Cross multiply
    8,122.86x = 11,207.63 × 4,936.10
  4. Step 4: Simplify right side
    8,122.86x = 55,321,901.72
  5. Step 5: Solve for x
    x = 55,321,901.72/8,122.86
  6. Step 6: Final answer
    x = 6,810.64

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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.