Home / 13,205.40-19,769.78-10,274.82

Finding the Fourth Proportional to 13,205.40, 19,769.78 and 10,274.82

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Solution

The fourth proportional to 13,205.40, 19,769.78 and 10,274.82 is: 15,382.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.40 : 19,769.78 = 10,274.82 : x
  2. Step 2: Convert to fraction form
    13,205.40/19,769.78 = 10,274.82/x
  3. Step 3: Cross multiply
    13,205.40x = 19,769.78 × 10,274.82
  4. Step 4: Simplify right side
    13,205.40x = 203,130,930.94
  5. Step 5: Solve for x
    x = 203,130,930.94/13,205.40
  6. Step 6: Final answer
    x = 15,382.41

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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.