Home / 18,126.82-25,015.26-10,955.76

Finding the Fourth Proportional to 18,126.82, 25,015.26 and 10,955.76

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Solution

The fourth proportional to 18,126.82, 25,015.26 and 10,955.76 is: 15,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.82 : 25,015.26 = 10,955.76 : x
  2. Step 2: Convert to fraction form
    18,126.82/25,015.26 = 10,955.76/x
  3. Step 3: Cross multiply
    18,126.82x = 25,015.26 × 10,955.76
  4. Step 4: Simplify right side
    18,126.82x = 274,061,184.90
  5. Step 5: Solve for x
    x = 274,061,184.90/18,126.82
  6. Step 6: Final answer
    x = 15,119.10

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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.