Home / 11,415.48-15,764.13-10,794.21

Finding the Fourth Proportional to 11,415.48, 15,764.13 and 10,794.21

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Solution

The fourth proportional to 11,415.48, 15,764.13 and 10,794.21 is: 14,906.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,415.48 : 15,764.13 = 10,794.21 : x
  2. Step 2: Convert to fraction form
    11,415.48/15,764.13 = 10,794.21/x
  3. Step 3: Cross multiply
    11,415.48x = 15,764.13 × 10,794.21
  4. Step 4: Simplify right side
    11,415.48x = 170,161,329.69
  5. Step 5: Solve for x
    x = 170,161,329.69/11,415.48
  6. Step 6: Final answer
    x = 14,906.19

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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.