Home / 18,269.10-27,383.40-7,172.10

Finding the Fourth Proportional to 18,269.10, 27,383.40 and 7,172.10

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Solution

The fourth proportional to 18,269.10, 27,383.40 and 7,172.10 is: 10,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.10 : 27,383.40 = 7,172.10 : x
  2. Step 2: Convert to fraction form
    18,269.10/27,383.40 = 7,172.10/x
  3. Step 3: Cross multiply
    18,269.10x = 27,383.40 × 7,172.10
  4. Step 4: Simplify right side
    18,269.10x = 196,396,483.14
  5. Step 5: Solve for x
    x = 196,396,483.14/18,269.10
  6. Step 6: Final answer
    x = 10,750.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.