Home / 12,947.75-19,417.50-4,180.62

Finding the Fourth Proportional to 12,947.75, 19,417.50 and 4,180.62

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Solution

The fourth proportional to 12,947.75, 19,417.50 and 4,180.62 is: 6,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.75 : 19,417.50 = 4,180.62 : x
  2. Step 2: Convert to fraction form
    12,947.75/19,417.50 = 4,180.62/x
  3. Step 3: Cross multiply
    12,947.75x = 19,417.50 × 4,180.62
  4. Step 4: Simplify right side
    12,947.75x = 81,177,188.85
  5. Step 5: Solve for x
    x = 81,177,188.85/12,947.75
  6. Step 6: Final answer
    x = 6,269.60

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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.