Home / 13,576.32-18,742.32-9,377.28

Finding the Fourth Proportional to 13,576.32, 18,742.32 and 9,377.28

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Solution

The fourth proportional to 13,576.32, 18,742.32 and 9,377.28 is: 12,945.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.32 : 18,742.32 = 9,377.28 : x
  2. Step 2: Convert to fraction form
    13,576.32/18,742.32 = 9,377.28/x
  3. Step 3: Cross multiply
    13,576.32x = 18,742.32 × 9,377.28
  4. Step 4: Simplify right side
    13,576.32x = 175,751,982.49
  5. Step 5: Solve for x
    x = 175,751,982.49/13,576.32
  6. Step 6: Final answer
    x = 12,945.48

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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.