Home / 13,311.30-19,959.46-4,421.87

Finding the Fourth Proportional to 13,311.30, 19,959.46 and 4,421.87

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Solution

The fourth proportional to 13,311.30, 19,959.46 and 4,421.87 is: 6,630.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.30 : 19,959.46 = 4,421.87 : x
  2. Step 2: Convert to fraction form
    13,311.30/19,959.46 = 4,421.87/x
  3. Step 3: Cross multiply
    13,311.30x = 19,959.46 × 4,421.87
  4. Step 4: Simplify right side
    13,311.30x = 88,258,238.53
  5. Step 5: Solve for x
    x = 88,258,238.53/13,311.30
  6. Step 6: Final answer
    x = 6,630.32

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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.