Home / 18,763.62-28,089.34-11,345.64

Finding the Fourth Proportional to 18,763.62, 28,089.34 and 11,345.64

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Solution

The fourth proportional to 18,763.62, 28,089.34 and 11,345.64 is: 16,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.62 : 28,089.34 = 11,345.64 : x
  2. Step 2: Convert to fraction form
    18,763.62/28,089.34 = 11,345.64/x
  3. Step 3: Cross multiply
    18,763.62x = 28,089.34 × 11,345.64
  4. Step 4: Simplify right side
    18,763.62x = 318,691,539.48
  5. Step 5: Solve for x
    x = 318,691,539.48/18,763.62
  6. Step 6: Final answer
    x = 16,984.54

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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.