Home / 12,810.75-19,206.03-4,911.75

Finding the Fourth Proportional to 12,810.75, 19,206.03 and 4,911.75

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Solution

The fourth proportional to 12,810.75, 19,206.03 and 4,911.75 is: 7,363.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.75 : 19,206.03 = 4,911.75 : x
  2. Step 2: Convert to fraction form
    12,810.75/19,206.03 = 4,911.75/x
  3. Step 3: Cross multiply
    12,810.75x = 19,206.03 × 4,911.75
  4. Step 4: Simplify right side
    12,810.75x = 94,335,217.85
  5. Step 5: Solve for x
    x = 94,335,217.85/12,810.75
  6. Step 6: Final answer
    x = 7,363.75

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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.