Home / 18,173.04-27,260.10-7,778.04

Finding the Fourth Proportional to 18,173.04, 27,260.10 and 7,778.04

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Solution

The fourth proportional to 18,173.04, 27,260.10 and 7,778.04 is: 11,667.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173.04 : 27,260.10 = 7,778.04 : x
  2. Step 2: Convert to fraction form
    18,173.04/27,260.10 = 7,778.04/x
  3. Step 3: Cross multiply
    18,173.04x = 27,260.10 × 7,778.04
  4. Step 4: Simplify right side
    18,173.04x = 212,030,148.20
  5. Step 5: Solve for x
    x = 212,030,148.20/18,173.04
  6. Step 6: Final answer
    x = 11,667.29

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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.