Home / 18,723.07-28,090.68-5,575.56

Finding the Fourth Proportional to 18,723.07, 28,090.68 and 5,575.56

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Solution

The fourth proportional to 18,723.07, 28,090.68 and 5,575.56 is: 8,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.07 : 28,090.68 = 5,575.56 : x
  2. Step 2: Convert to fraction form
    18,723.07/28,090.68 = 5,575.56/x
  3. Step 3: Cross multiply
    18,723.07x = 28,090.68 × 5,575.56
  4. Step 4: Simplify right side
    18,723.07x = 156,621,271.78
  5. Step 5: Solve for x
    x = 156,621,271.78/18,723.07
  6. Step 6: Final answer
    x = 8,365.15

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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.