Home / 13,003.40-19,508.18-4,238.32

Finding the Fourth Proportional to 13,003.40, 19,508.18 and 4,238.32

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Solution

The fourth proportional to 13,003.40, 19,508.18 and 4,238.32 is: 6,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.40 : 19,508.18 = 4,238.32 : x
  2. Step 2: Convert to fraction form
    13,003.40/19,508.18 = 4,238.32/x
  3. Step 3: Cross multiply
    13,003.40x = 19,508.18 × 4,238.32
  4. Step 4: Simplify right side
    13,003.40x = 82,681,790.73
  5. Step 5: Solve for x
    x = 82,681,790.73/13,003.40
  6. Step 6: Final answer
    x = 6,358.47

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