Home / 13,583.79-18,728.28-9,100.44

Finding the Fourth Proportional to 13,583.79, 18,728.28 and 9,100.44

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Solution

The fourth proportional to 13,583.79, 18,728.28 and 9,100.44 is: 12,546.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.79 : 18,728.28 = 9,100.44 : x
  2. Step 2: Convert to fraction form
    13,583.79/18,728.28 = 9,100.44/x
  3. Step 3: Cross multiply
    13,583.79x = 18,728.28 × 9,100.44
  4. Step 4: Simplify right side
    13,583.79x = 170,435,588.44
  5. Step 5: Solve for x
    x = 170,435,588.44/13,583.79
  6. Step 6: Final answer
    x = 12,546.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.