Home / 11,907.98-17,860.44-3,143.60

Finding the Fourth Proportional to 11,907.98, 17,860.44 and 3,143.60

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Solution

The fourth proportional to 11,907.98, 17,860.44 and 3,143.60 is: 4,715.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.98 : 17,860.44 = 3,143.60 : x
  2. Step 2: Convert to fraction form
    11,907.98/17,860.44 = 3,143.60/x
  3. Step 3: Cross multiply
    11,907.98x = 17,860.44 × 3,143.60
  4. Step 4: Simplify right side
    11,907.98x = 56,146,079.18
  5. Step 5: Solve for x
    x = 56,146,079.18/11,907.98
  6. Step 6: Final answer
    x = 4,715.00

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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.