Home / 15,133.11-20,883.86-8,327.22

Finding the Fourth Proportional to 15,133.11, 20,883.86 and 8,327.22

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Solution

The fourth proportional to 15,133.11, 20,883.86 and 8,327.22 is: 11,491.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133.11 : 20,883.86 = 8,327.22 : x
  2. Step 2: Convert to fraction form
    15,133.11/20,883.86 = 8,327.22/x
  3. Step 3: Cross multiply
    15,133.11x = 20,883.86 × 8,327.22
  4. Step 4: Simplify right side
    15,133.11x = 173,904,496.67
  5. Step 5: Solve for x
    x = 173,904,496.67/15,133.11
  6. Step 6: Final answer
    x = 11,491.66

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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.