Home / 13,583.88-20,376.48-4,230.28

Finding the Fourth Proportional to 13,583.88, 20,376.48 and 4,230.28

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Solution

The fourth proportional to 13,583.88, 20,376.48 and 4,230.28 is: 6,345.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.88 : 20,376.48 = 4,230.28 : x
  2. Step 2: Convert to fraction form
    13,583.88/20,376.48 = 4,230.28/x
  3. Step 3: Cross multiply
    13,583.88x = 20,376.48 × 4,230.28
  4. Step 4: Simplify right side
    13,583.88x = 86,198,215.81
  5. Step 5: Solve for x
    x = 86,198,215.81/13,583.88
  6. Step 6: Final answer
    x = 6,345.63

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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.