Home / 13,189.58-19,785.40-3,829.76

Finding the Fourth Proportional to 13,189.58, 19,785.40 and 3,829.76

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Solution

The fourth proportional to 13,189.58, 19,785.40 and 3,829.76 is: 5,744.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.58 : 19,785.40 = 3,829.76 : x
  2. Step 2: Convert to fraction form
    13,189.58/19,785.40 = 3,829.76/x
  3. Step 3: Cross multiply
    13,189.58x = 19,785.40 × 3,829.76
  4. Step 4: Simplify right side
    13,189.58x = 75,773,259.71
  5. Step 5: Solve for x
    x = 75,773,259.71/13,189.58
  6. Step 6: Final answer
    x = 5,744.93

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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.