Home / 12,553.29-17,313.48-11,137.95

Finding the Fourth Proportional to 12,553.29, 17,313.48 and 11,137.95

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Solution

The fourth proportional to 12,553.29, 17,313.48 and 11,137.95 is: 15,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.29 : 17,313.48 = 11,137.95 : x
  2. Step 2: Convert to fraction form
    12,553.29/17,313.48 = 11,137.95/x
  3. Step 3: Cross multiply
    12,553.29x = 17,313.48 × 11,137.95
  4. Step 4: Simplify right side
    12,553.29x = 192,836,674.57
  5. Step 5: Solve for x
    x = 192,836,674.57/12,553.29
  6. Step 6: Final answer
    x = 15,361.45

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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.