Home / 13,718.23-18,924.20-8,673.95

Finding the Fourth Proportional to 13,718.23, 18,924.20 and 8,673.95

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Solution

The fourth proportional to 13,718.23, 18,924.20 and 8,673.95 is: 11,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.23 : 18,924.20 = 8,673.95 : x
  2. Step 2: Convert to fraction form
    13,718.23/18,924.20 = 8,673.95/x
  3. Step 3: Cross multiply
    13,718.23x = 18,924.20 × 8,673.95
  4. Step 4: Simplify right side
    13,718.23x = 164,147,601.06
  5. Step 5: Solve for x
    x = 164,147,601.06/13,718.23
  6. Step 6: Final answer
    x = 11,965.66

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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.