Home / 12,573.76-18,860.74-3,809.36

Finding the Fourth Proportional to 12,573.76, 18,860.74 and 3,809.36

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Solution

The fourth proportional to 12,573.76, 18,860.74 and 3,809.36 is: 5,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.76 : 18,860.74 = 3,809.36 : x
  2. Step 2: Convert to fraction form
    12,573.76/18,860.74 = 3,809.36/x
  3. Step 3: Cross multiply
    12,573.76x = 18,860.74 × 3,809.36
  4. Step 4: Simplify right side
    12,573.76x = 71,847,348.53
  5. Step 5: Solve for x
    x = 71,847,348.53/12,573.76
  6. Step 6: Final answer
    x = 5,714.07

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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.