Home / 12,619.26-18,970.83-8,947.80

Finding the Fourth Proportional to 12,619.26, 18,970.83 and 8,947.80

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Solution

The fourth proportional to 12,619.26, 18,970.83 and 8,947.80 is: 13,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.26 : 18,970.83 = 8,947.80 : x
  2. Step 2: Convert to fraction form
    12,619.26/18,970.83 = 8,947.80/x
  3. Step 3: Cross multiply
    12,619.26x = 18,970.83 × 8,947.80
  4. Step 4: Simplify right side
    12,619.26x = 169,747,192.67
  5. Step 5: Solve for x
    x = 169,747,192.67/12,619.26
  6. Step 6: Final answer
    x = 13,451.44

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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.