Home / 13,171.56-18,174.62-7,506.42

Finding the Fourth Proportional to 13,171.56, 18,174.62 and 7,506.42

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Solution

The fourth proportional to 13,171.56, 18,174.62 and 7,506.42 is: 10,357.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.56 : 18,174.62 = 7,506.42 : x
  2. Step 2: Convert to fraction form
    13,171.56/18,174.62 = 7,506.42/x
  3. Step 3: Cross multiply
    13,171.56x = 18,174.62 × 7,506.42
  4. Step 4: Simplify right side
    13,171.56x = 136,426,331.06
  5. Step 5: Solve for x
    x = 136,426,331.06/13,171.56
  6. Step 6: Final answer
    x = 10,357.64

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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.