Home / 18,932.49-26,126.94-10,979.43

Finding the Fourth Proportional to 18,932.49, 26,126.94 and 10,979.43

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Solution

The fourth proportional to 18,932.49, 26,126.94 and 10,979.43 is: 15,151.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.49 : 26,126.94 = 10,979.43 : x
  2. Step 2: Convert to fraction form
    18,932.49/26,126.94 = 10,979.43/x
  3. Step 3: Cross multiply
    18,932.49x = 26,126.94 × 10,979.43
  4. Step 4: Simplify right side
    18,932.49x = 286,858,908.84
  5. Step 5: Solve for x
    x = 286,858,908.84/18,932.49
  6. Step 6: Final answer
    x = 15,151.67

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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.