Home / 13,631.28-20,451.24-4,866

Finding the Fourth Proportional to 13,631.28, 20,451.24 and 4,866

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Solution

The fourth proportional to 13,631.28, 20,451.24 and 4,866 is: 7,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.28 : 20,451.24 = 4,866 : x
  2. Step 2: Convert to fraction form
    13,631.28/20,451.24 = 4,866/x
  3. Step 3: Cross multiply
    13,631.28x = 20,451.24 × 4,866
  4. Step 4: Simplify right side
    13,631.28x = 99,515,733.84
  5. Step 5: Solve for x
    x = 99,515,733.84/13,631.28
  6. Step 6: Final answer
    x = 7,300.54

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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.