Home / 13,569.36-20,261.67-11,974.79

Finding the Fourth Proportional to 13,569.36, 20,261.67 and 11,974.79

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Solution

The fourth proportional to 13,569.36, 20,261.67 and 11,974.79 is: 17,880.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.36 : 20,261.67 = 11,974.79 : x
  2. Step 2: Convert to fraction form
    13,569.36/20,261.67 = 11,974.79/x
  3. Step 3: Cross multiply
    13,569.36x = 20,261.67 × 11,974.79
  4. Step 4: Simplify right side
    13,569.36x = 242,629,141.99
  5. Step 5: Solve for x
    x = 242,629,141.99/13,569.36
  6. Step 6: Final answer
    x = 17,880.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.