Home / 18,983.21-28,474.77-5,132.21

Finding the Fourth Proportional to 18,983.21, 28,474.77 and 5,132.21

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Solution

The fourth proportional to 18,983.21, 28,474.77 and 5,132.21 is: 7,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.21 : 28,474.77 = 5,132.21 : x
  2. Step 2: Convert to fraction form
    18,983.21/28,474.77 = 5,132.21/x
  3. Step 3: Cross multiply
    18,983.21x = 28,474.77 × 5,132.21
  4. Step 4: Simplify right side
    18,983.21x = 146,138,499.34
  5. Step 5: Solve for x
    x = 146,138,499.34/18,983.21
  6. Step 6: Final answer
    x = 7,698.30

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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.