Home / 13,623.23-18,791.60-9,366.91

Finding the Fourth Proportional to 13,623.23, 18,791.60 and 9,366.91

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Solution

The fourth proportional to 13,623.23, 18,791.60 and 9,366.91 is: 12,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.23 : 18,791.60 = 9,366.91 : x
  2. Step 2: Convert to fraction form
    13,623.23/18,791.60 = 9,366.91/x
  3. Step 3: Cross multiply
    13,623.23x = 18,791.60 × 9,366.91
  4. Step 4: Simplify right side
    13,623.23x = 176,019,132.14
  5. Step 5: Solve for x
    x = 176,019,132.14/13,623.23
  6. Step 6: Final answer
    x = 12,920.51

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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.