Home / 18,385.10-27,564.15-7,286.30

Finding the Fourth Proportional to 18,385.10, 27,564.15 and 7,286.30

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Solution

The fourth proportional to 18,385.10, 27,564.15 and 7,286.30 is: 10,924.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.10 : 27,564.15 = 7,286.30 : x
  2. Step 2: Convert to fraction form
    18,385.10/27,564.15 = 7,286.30/x
  3. Step 3: Cross multiply
    18,385.10x = 27,564.15 × 7,286.30
  4. Step 4: Simplify right side
    18,385.10x = 200,840,666.15
  5. Step 5: Solve for x
    x = 200,840,666.15/18,385.10
  6. Step 6: Final answer
    x = 10,924.10

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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.