Home / 15,131.82-20,883.24-10,346.34

Finding the Fourth Proportional to 15,131.82, 20,883.24 and 10,346.34

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Solution

The fourth proportional to 15,131.82, 20,883.24 and 10,346.34 is: 14,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,131.82 : 20,883.24 = 10,346.34 : x
  2. Step 2: Convert to fraction form
    15,131.82/20,883.24 = 10,346.34/x
  3. Step 3: Cross multiply
    15,131.82x = 20,883.24 × 10,346.34
  4. Step 4: Simplify right side
    15,131.82x = 216,065,101.34
  5. Step 5: Solve for x
    x = 216,065,101.34/15,131.82
  6. Step 6: Final answer
    x = 14,278.86

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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.