Home / 13,501.76-20,255.04-4,141.60

Finding the Fourth Proportional to 13,501.76, 20,255.04 and 4,141.60

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Solution

The fourth proportional to 13,501.76, 20,255.04 and 4,141.60 is: 6,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.76 : 20,255.04 = 4,141.60 : x
  2. Step 2: Convert to fraction form
    13,501.76/20,255.04 = 4,141.60/x
  3. Step 3: Cross multiply
    13,501.76x = 20,255.04 × 4,141.60
  4. Step 4: Simplify right side
    13,501.76x = 83,888,273.66
  5. Step 5: Solve for x
    x = 83,888,273.66/13,501.76
  6. Step 6: Final answer
    x = 6,213.14

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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.