Home / 13,171.20-18,176.67-7,203.03

Finding the Fourth Proportional to 13,171.20, 18,176.67 and 7,203.03

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Solution

The fourth proportional to 13,171.20, 18,176.67 and 7,203.03 is: 9,940.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.20 : 18,176.67 = 7,203.03 : x
  2. Step 2: Convert to fraction form
    13,171.20/18,176.67 = 7,203.03/x
  3. Step 3: Cross multiply
    13,171.20x = 18,176.67 × 7,203.03
  4. Step 4: Simplify right side
    13,171.20x = 130,927,099.31
  5. Step 5: Solve for x
    x = 130,927,099.31/13,171.20
  6. Step 6: Final answer
    x = 9,940.41

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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.