Home / 13,623.59-18,795.71-8,910.61

Finding the Fourth Proportional to 13,623.59, 18,795.71 and 8,910.61

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Solution

The fourth proportional to 13,623.59, 18,795.71 and 8,910.61 is: 12,293.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.59 : 18,795.71 = 8,910.61 : x
  2. Step 2: Convert to fraction form
    13,623.59/18,795.71 = 8,910.61/x
  3. Step 3: Cross multiply
    13,623.59x = 18,795.71 × 8,910.61
  4. Step 4: Simplify right side
    13,623.59x = 167,481,216.77
  5. Step 5: Solve for x
    x = 167,481,216.77/13,623.59
  6. Step 6: Final answer
    x = 12,293.47

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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.