Home / 13,622.81-20,439.18-4,263.53

Finding the Fourth Proportional to 13,622.81, 20,439.18 and 4,263.53

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Solution

The fourth proportional to 13,622.81, 20,439.18 and 4,263.53 is: 6,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.81 : 20,439.18 = 4,263.53 : x
  2. Step 2: Convert to fraction form
    13,622.81/20,439.18 = 4,263.53/x
  3. Step 3: Cross multiply
    13,622.81x = 20,439.18 × 4,263.53
  4. Step 4: Simplify right side
    13,622.81x = 87,142,954.91
  5. Step 5: Solve for x
    x = 87,142,954.91/13,622.81
  6. Step 6: Final answer
    x = 6,396.84

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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.