Home / 13,019.76-19,529.37-3,785.76

Finding the Fourth Proportional to 13,019.76, 19,529.37 and 3,785.76

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Solution

The fourth proportional to 13,019.76, 19,529.37 and 3,785.76 is: 5,678.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.76 : 19,529.37 = 3,785.76 : x
  2. Step 2: Convert to fraction form
    13,019.76/19,529.37 = 3,785.76/x
  3. Step 3: Cross multiply
    13,019.76x = 19,529.37 × 3,785.76
  4. Step 4: Simplify right side
    13,019.76x = 73,933,507.77
  5. Step 5: Solve for x
    x = 73,933,507.77/13,019.76
  6. Step 6: Final answer
    x = 5,678.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.