Home / 18,876.28-26,049.57-10,378.77

Finding the Fourth Proportional to 18,876.28, 26,049.57 and 10,378.77

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Solution

The fourth proportional to 18,876.28, 26,049.57 and 10,378.77 is: 14,322.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876.28 : 26,049.57 = 10,378.77 : x
  2. Step 2: Convert to fraction form
    18,876.28/26,049.57 = 10,378.77/x
  3. Step 3: Cross multiply
    18,876.28x = 26,049.57 × 10,378.77
  4. Step 4: Simplify right side
    18,876.28x = 270,362,443.74
  5. Step 5: Solve for x
    x = 270,362,443.74/18,876.28
  6. Step 6: Final answer
    x = 14,322.87

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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.