Home / 13,775.33-19,014.26-8,109.63

Finding the Fourth Proportional to 13,775.33, 19,014.26 and 8,109.63

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Solution

The fourth proportional to 13,775.33, 19,014.26 and 8,109.63 is: 11,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.33 : 19,014.26 = 8,109.63 : x
  2. Step 2: Convert to fraction form
    13,775.33/19,014.26 = 8,109.63/x
  3. Step 3: Cross multiply
    13,775.33x = 19,014.26 × 8,109.63
  4. Step 4: Simplify right side
    13,775.33x = 154,198,572.78
  5. Step 5: Solve for x
    x = 154,198,572.78/13,775.33
  6. Step 6: Final answer
    x = 11,193.82

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Half scale
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Double scale
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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.