Home / 13,257.12-19,888.52-4,491.60

Finding the Fourth Proportional to 13,257.12, 19,888.52 and 4,491.60

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Solution

The fourth proportional to 13,257.12, 19,888.52 and 4,491.60 is: 6,738.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.12 : 19,888.52 = 4,491.60 : x
  2. Step 2: Convert to fraction form
    13,257.12/19,888.52 = 4,491.60/x
  3. Step 3: Cross multiply
    13,257.12x = 19,888.52 × 4,491.60
  4. Step 4: Simplify right side
    13,257.12x = 89,331,276.43
  5. Step 5: Solve for x
    x = 89,331,276.43/13,257.12
  6. Step 6: Final answer
    x = 6,738.36

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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.