Home / 13,170.29-18,174.38-7,202.03

Finding the Fourth Proportional to 13,170.29, 18,174.38 and 7,202.03

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Solution

The fourth proportional to 13,170.29, 18,174.38 and 7,202.03 is: 9,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.29 : 18,174.38 = 7,202.03 : x
  2. Step 2: Convert to fraction form
    13,170.29/18,174.38 = 7,202.03/x
  3. Step 3: Cross multiply
    13,170.29x = 18,174.38 × 7,202.03
  4. Step 4: Simplify right side
    13,170.29x = 130,892,303.11
  5. Step 5: Solve for x
    x = 130,892,303.11/13,170.29
  6. Step 6: Final answer
    x = 9,938.46

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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.