Home / 19,379.19-26,748.39-11,426.71

Finding the Fourth Proportional to 19,379.19, 26,748.39 and 11,426.71

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Solution

The fourth proportional to 19,379.19, 26,748.39 and 11,426.71 is: 15,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379.19 : 26,748.39 = 11,426.71 : x
  2. Step 2: Convert to fraction form
    19,379.19/26,748.39 = 11,426.71/x
  3. Step 3: Cross multiply
    19,379.19x = 26,748.39 × 11,426.71
  4. Step 4: Simplify right side
    19,379.19x = 305,646,095.50
  5. Step 5: Solve for x
    x = 305,646,095.50/19,379.19
  6. Step 6: Final answer
    x = 15,771.87

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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.