Home / 13,537.45-18,682.41-8,161.61

Finding the Fourth Proportional to 13,537.45, 18,682.41 and 8,161.61

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Solution

The fourth proportional to 13,537.45, 18,682.41 and 8,161.61 is: 11,263.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.45 : 18,682.41 = 8,161.61 : x
  2. Step 2: Convert to fraction form
    13,537.45/18,682.41 = 8,161.61/x
  3. Step 3: Cross multiply
    13,537.45x = 18,682.41 × 8,161.61
  4. Step 4: Simplify right side
    13,537.45x = 152,478,456.77
  5. Step 5: Solve for x
    x = 152,478,456.77/13,537.45
  6. Step 6: Final answer
    x = 11,263.45

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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.