Home / 12,911.85-19,362.02-3,675.69

Finding the Fourth Proportional to 12,911.85, 19,362.02 and 3,675.69

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Solution

The fourth proportional to 12,911.85, 19,362.02 and 3,675.69 is: 5,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.85 : 19,362.02 = 3,675.69 : x
  2. Step 2: Convert to fraction form
    12,911.85/19,362.02 = 3,675.69/x
  3. Step 3: Cross multiply
    12,911.85x = 19,362.02 × 3,675.69
  4. Step 4: Simplify right side
    12,911.85x = 71,168,764.92
  5. Step 5: Solve for x
    x = 71,168,764.92/12,911.85
  6. Step 6: Final answer
    x = 5,511.90

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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.