Home / 13,591.80-20,389.73-4,825.98

Finding the Fourth Proportional to 13,591.80, 20,389.73 and 4,825.98

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Solution

The fourth proportional to 13,591.80, 20,389.73 and 4,825.98 is: 7,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.80 : 20,389.73 = 4,825.98 : x
  2. Step 2: Convert to fraction form
    13,591.80/20,389.73 = 4,825.98/x
  3. Step 3: Cross multiply
    13,591.80x = 20,389.73 × 4,825.98
  4. Step 4: Simplify right side
    13,591.80x = 98,400,405.06
  5. Step 5: Solve for x
    x = 98,400,405.06/13,591.80
  6. Step 6: Final answer
    x = 7,239.69

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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.