Home / 13,187.44-19,783.32-5,791.60

Finding the Fourth Proportional to 13,187.44, 19,783.32 and 5,791.60

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Solution

The fourth proportional to 13,187.44, 19,783.32 and 5,791.60 is: 8,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.44 : 19,783.32 = 5,791.60 : x
  2. Step 2: Convert to fraction form
    13,187.44/19,783.32 = 5,791.60/x
  3. Step 3: Cross multiply
    13,187.44x = 19,783.32 × 5,791.60
  4. Step 4: Simplify right side
    13,187.44x = 114,577,076.11
  5. Step 5: Solve for x
    x = 114,577,076.11/13,187.44
  6. Step 6: Final answer
    x = 8,688.35

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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.