Home / 8,712.20-12,022.26-4,936.16

Finding the Fourth Proportional to 8,712.20, 12,022.26 and 4,936.16

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Solution

The fourth proportional to 8,712.20, 12,022.26 and 4,936.16 is: 6,811.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.20 : 12,022.26 = 4,936.16 : x
  2. Step 2: Convert to fraction form
    8,712.20/12,022.26 = 4,936.16/x
  3. Step 3: Cross multiply
    8,712.20x = 12,022.26 × 4,936.16
  4. Step 4: Simplify right side
    8,712.20x = 59,343,738.81
  5. Step 5: Solve for x
    x = 59,343,738.81/8,712.20
  6. Step 6: Final answer
    x = 6,811.57

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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.