Home / 13,845.76-20,768.64-5,077.36

Finding the Fourth Proportional to 13,845.76, 20,768.64 and 5,077.36

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Solution

The fourth proportional to 13,845.76, 20,768.64 and 5,077.36 is: 7,616.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.76 : 20,768.64 = 5,077.36 : x
  2. Step 2: Convert to fraction form
    13,845.76/20,768.64 = 5,077.36/x
  3. Step 3: Cross multiply
    13,845.76x = 20,768.64 × 5,077.36
  4. Step 4: Simplify right side
    13,845.76x = 105,449,861.99
  5. Step 5: Solve for x
    x = 105,449,861.99/13,845.76
  6. Step 6: Final answer
    x = 7,616.04

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1.5x scale

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.