Home / 11,723.47-16,161.57-8,360.47

Finding the Fourth Proportional to 11,723.47, 16,161.57 and 8,360.47

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Solution

The fourth proportional to 11,723.47, 16,161.57 and 8,360.47 is: 11,525.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.47 : 16,161.57 = 8,360.47 : x
  2. Step 2: Convert to fraction form
    11,723.47/16,161.57 = 8,360.47/x
  3. Step 3: Cross multiply
    11,723.47x = 16,161.57 × 8,360.47
  4. Step 4: Simplify right side
    11,723.47x = 135,118,321.14
  5. Step 5: Solve for x
    x = 135,118,321.14/11,723.47
  6. Step 6: Final answer
    x = 11,525.45

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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.