Home / 19,378.19-26,747.01-11,425.71

Finding the Fourth Proportional to 19,378.19, 26,747.01 and 11,425.71

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Solution

The fourth proportional to 19,378.19, 26,747.01 and 11,425.71 is: 15,770.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378.19 : 26,747.01 = 11,425.71 : x
  2. Step 2: Convert to fraction form
    19,378.19/26,747.01 = 11,425.71/x
  3. Step 3: Cross multiply
    19,378.19x = 26,747.01 × 11,425.71
  4. Step 4: Simplify right side
    19,378.19x = 305,603,529.48
  5. Step 5: Solve for x
    x = 305,603,529.48/19,378.19
  6. Step 6: Final answer
    x = 15,770.49

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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.