Home / 18,876.15-26,049.39-10,378.65

Finding the Fourth Proportional to 18,876.15, 26,049.39 and 10,378.65

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Solution

The fourth proportional to 18,876.15, 26,049.39 and 10,378.65 is: 14,322.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876.15 : 26,049.39 = 10,378.65 : x
  2. Step 2: Convert to fraction form
    18,876.15/26,049.39 = 10,378.65/x
  3. Step 3: Cross multiply
    18,876.15x = 26,049.39 × 10,378.65
  4. Step 4: Simplify right side
    18,876.15x = 270,357,442.76
  5. Step 5: Solve for x
    x = 270,357,442.76/18,876.15
  6. Step 6: Final answer
    x = 14,322.70

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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.