Home / 13,195.76-19,768.80-10,259.78

Finding the Fourth Proportional to 13,195.76, 19,768.80 and 10,259.78

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Solution

The fourth proportional to 13,195.76, 19,768.80 and 10,259.78 is: 15,370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.76 : 19,768.80 = 10,259.78 : x
  2. Step 2: Convert to fraction form
    13,195.76/19,768.80 = 10,259.78/x
  3. Step 3: Cross multiply
    13,195.76x = 19,768.80 × 10,259.78
  4. Step 4: Simplify right side
    13,195.76x = 202,823,538.86
  5. Step 5: Solve for x
    x = 202,823,538.86/13,195.76
  6. Step 6: Final answer
    x = 15,370.36

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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.