Home / 18,946.62-28,403.87-7,846.38

Finding the Fourth Proportional to 18,946.62, 28,403.87 and 7,846.38

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Solution

The fourth proportional to 18,946.62, 28,403.87 and 7,846.38 is: 11,762.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.62 : 28,403.87 = 7,846.38 : x
  2. Step 2: Convert to fraction form
    18,946.62/28,403.87 = 7,846.38/x
  3. Step 3: Cross multiply
    18,946.62x = 28,403.87 × 7,846.38
  4. Step 4: Simplify right side
    18,946.62x = 222,867,518.26
  5. Step 5: Solve for x
    x = 222,867,518.26/18,946.62
  6. Step 6: Final answer
    x = 11,762.92

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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.