Home / 18,990.05-28,468.67-7,295.27

Finding the Fourth Proportional to 18,990.05, 28,468.67 and 7,295.27

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Solution

The fourth proportional to 18,990.05, 28,468.67 and 7,295.27 is: 10,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.05 : 28,468.67 = 7,295.27 : x
  2. Step 2: Convert to fraction form
    18,990.05/28,468.67 = 7,295.27/x
  3. Step 3: Cross multiply
    18,990.05x = 28,468.67 × 7,295.27
  4. Step 4: Simplify right side
    18,990.05x = 207,686,455.37
  5. Step 5: Solve for x
    x = 207,686,455.37/18,990.05
  6. Step 6: Final answer
    x = 10,936.60

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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.