Home / 13,205.76-19,783.80-10,269.78

Finding the Fourth Proportional to 13,205.76, 19,783.80 and 10,269.78

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Solution

The fourth proportional to 13,205.76, 19,783.80 and 10,269.78 is: 15,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.76 : 19,783.80 = 10,269.78 : x
  2. Step 2: Convert to fraction form
    13,205.76/19,783.80 = 10,269.78/x
  3. Step 3: Cross multiply
    13,205.76x = 19,783.80 × 10,269.78
  4. Step 4: Simplify right side
    13,205.76x = 203,175,273.56
  5. Step 5: Solve for x
    x = 203,175,273.56/13,205.76
  6. Step 6: Final answer
    x = 15,385.35

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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.