Home / 12,948.40-19,388.88-8,993.80

Finding the Fourth Proportional to 12,948.40, 19,388.88 and 8,993.80

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Solution

The fourth proportional to 12,948.40, 19,388.88 and 8,993.80 is: 13,467.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.40 : 19,388.88 = 8,993.80 : x
  2. Step 2: Convert to fraction form
    12,948.40/19,388.88 = 8,993.80/x
  3. Step 3: Cross multiply
    12,948.40x = 19,388.88 × 8,993.80
  4. Step 4: Simplify right side
    12,948.40x = 174,379,708.94
  5. Step 5: Solve for x
    x = 174,379,708.94/12,948.40
  6. Step 6: Final answer
    x = 13,467.28

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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.