Home / 13,696.08-20,536.79-9,318.48

Finding the Fourth Proportional to 13,696.08, 20,536.79 and 9,318.48

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Solution

The fourth proportional to 13,696.08, 20,536.79 and 9,318.48 is: 13,972.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696.08 : 20,536.79 = 9,318.48 : x
  2. Step 2: Convert to fraction form
    13,696.08/20,536.79 = 9,318.48/x
  3. Step 3: Cross multiply
    13,696.08x = 20,536.79 × 9,318.48
  4. Step 4: Simplify right side
    13,696.08x = 191,371,620.29
  5. Step 5: Solve for x
    x = 191,371,620.29/13,696.08
  6. Step 6: Final answer
    x = 13,972.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.