Home / 18,775.08-28,162.62-4,923

Finding the Fourth Proportional to 18,775.08, 28,162.62 and 4,923

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Solution

The fourth proportional to 18,775.08, 28,162.62 and 4,923 is: 7,384.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.08 : 28,162.62 = 4,923 : x
  2. Step 2: Convert to fraction form
    18,775.08/28,162.62 = 4,923/x
  3. Step 3: Cross multiply
    18,775.08x = 28,162.62 × 4,923
  4. Step 4: Simplify right side
    18,775.08x = 138,644,578.26
  5. Step 5: Solve for x
    x = 138,644,578.26/18,775.08
  6. Step 6: Final answer
    x = 7,384.50

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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.