Home / 18,255.08-27,387.48-5,775.42

Finding the Fourth Proportional to 18,255.08, 27,387.48 and 5,775.42

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Solution

The fourth proportional to 18,255.08, 27,387.48 and 5,775.42 is: 8,664.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.08 : 27,387.48 = 5,775.42 : x
  2. Step 2: Convert to fraction form
    18,255.08/27,387.48 = 5,775.42/x
  3. Step 3: Cross multiply
    18,255.08x = 27,387.48 × 5,775.42
  4. Step 4: Simplify right side
    18,255.08x = 158,174,199.74
  5. Step 5: Solve for x
    x = 158,174,199.74/18,255.08
  6. Step 6: Final answer
    x = 8,664.67

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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.