Home / 13,510.14-18,634.89-11,738.70

Finding the Fourth Proportional to 13,510.14, 18,634.89 and 11,738.70

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Solution

The fourth proportional to 13,510.14, 18,634.89 and 11,738.70 is: 16,191.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.14 : 18,634.89 = 11,738.70 : x
  2. Step 2: Convert to fraction form
    13,510.14/18,634.89 = 11,738.70/x
  3. Step 3: Cross multiply
    13,510.14x = 18,634.89 × 11,738.70
  4. Step 4: Simplify right side
    13,510.14x = 218,749,383.24
  5. Step 5: Solve for x
    x = 218,749,383.24/13,510.14
  6. Step 6: Final answer
    x = 16,191.50

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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.