Home / 19,289.41-28,928.74-6,807.82

Finding the Fourth Proportional to 19,289.41, 28,928.74 and 6,807.82

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Solution

The fourth proportional to 19,289.41, 28,928.74 and 6,807.82 is: 10,209.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289.41 : 28,928.74 = 6,807.82 : x
  2. Step 2: Convert to fraction form
    19,289.41/28,928.74 = 6,807.82/x
  3. Step 3: Cross multiply
    19,289.41x = 28,928.74 × 6,807.82
  4. Step 4: Simplify right side
    19,289.41x = 196,941,654.75
  5. Step 5: Solve for x
    x = 196,941,654.75/19,289.41
  6. Step 6: Final answer
    x = 10,209.83

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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.