Home / 13,968.32-20,953.60-3,580

Finding the Fourth Proportional to 13,968.32, 20,953.60 and 3,580

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Solution

The fourth proportional to 13,968.32, 20,953.60 and 3,580 is: 5,370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.32 : 20,953.60 = 3,580 : x
  2. Step 2: Convert to fraction form
    13,968.32/20,953.60 = 3,580/x
  3. Step 3: Cross multiply
    13,968.32x = 20,953.60 × 3,580
  4. Step 4: Simplify right side
    13,968.32x = 75,013,888
  5. Step 5: Solve for x
    x = 75,013,888/13,968.32
  6. Step 6: Final answer
    x = 5,370.29

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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.