Home / 18,876.21-26,049.48-10,378.70

Finding the Fourth Proportional to 18,876.21, 26,049.48 and 10,378.70

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Solution

The fourth proportional to 18,876.21, 26,049.48 and 10,378.70 is: 14,322.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876.21 : 26,049.48 = 10,378.70 : x
  2. Step 2: Convert to fraction form
    18,876.21/26,049.48 = 10,378.70/x
  3. Step 3: Cross multiply
    18,876.21x = 26,049.48 × 10,378.70
  4. Step 4: Simplify right side
    18,876.21x = 270,359,607.83
  5. Step 5: Solve for x
    x = 270,359,607.83/18,876.21
  6. Step 6: Final answer
    x = 14,322.77

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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.