Home / 18,090.16-27,176.83-12,765.60

Finding the Fourth Proportional to 18,090.16, 27,176.83 and 12,765.60

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Solution

The fourth proportional to 18,090.16, 27,176.83 and 12,765.60 is: 19,177.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.16 : 27,176.83 = 12,765.60 : x
  2. Step 2: Convert to fraction form
    18,090.16/27,176.83 = 12,765.60/x
  3. Step 3: Cross multiply
    18,090.16x = 27,176.83 × 12,765.60
  4. Step 4: Simplify right side
    18,090.16x = 346,928,509.13
  5. Step 5: Solve for x
    x = 346,928,509.13/18,090.16
  6. Step 6: Final answer
    x = 19,177.75

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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.