Home / 8,047.45-12,071.78-2,782.25

Finding the Fourth Proportional to 8,047.45, 12,071.78 and 2,782.25

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Solution

The fourth proportional to 8,047.45, 12,071.78 and 2,782.25 is: 4,173.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047.45 : 12,071.78 = 2,782.25 : x
  2. Step 2: Convert to fraction form
    8,047.45/12,071.78 = 2,782.25/x
  3. Step 3: Cross multiply
    8,047.45x = 12,071.78 × 2,782.25
  4. Step 4: Simplify right side
    8,047.45x = 33,586,635.63
  5. Step 5: Solve for x
    x = 33,586,635.63/8,047.45
  6. Step 6: Final answer
    x = 4,173.58

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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.