Home / 13,112.96-18,077.76-9,576.32

Finding the Fourth Proportional to 13,112.96, 18,077.76 and 9,576.32

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Solution

The fourth proportional to 13,112.96, 18,077.76 and 9,576.32 is: 13,202.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.96 : 18,077.76 = 9,576.32 : x
  2. Step 2: Convert to fraction form
    13,112.96/18,077.76 = 9,576.32/x
  3. Step 3: Cross multiply
    13,112.96x = 18,077.76 × 9,576.32
  4. Step 4: Simplify right side
    13,112.96x = 173,118,414.64
  5. Step 5: Solve for x
    x = 173,118,414.64/13,112.96
  6. Step 6: Final answer
    x = 13,202.09

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1.5x scale

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.