Home / 18,120.84-27,150.48-8,765.25

Finding the Fourth Proportional to 18,120.84, 27,150.48 and 8,765.25

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Solution

The fourth proportional to 18,120.84, 27,150.48 and 8,765.25 is: 13,132.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.84 : 27,150.48 = 8,765.25 : x
  2. Step 2: Convert to fraction form
    18,120.84/27,150.48 = 8,765.25/x
  3. Step 3: Cross multiply
    18,120.84x = 27,150.48 × 8,765.25
  4. Step 4: Simplify right side
    18,120.84x = 237,980,744.82
  5. Step 5: Solve for x
    x = 237,980,744.82/18,120.84
  6. Step 6: Final answer
    x = 13,132.99

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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.