Home / 8,173.88-12,260.74-5,412.90

Finding the Fourth Proportional to 8,173.88, 12,260.74 and 5,412.90

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Solution

The fourth proportional to 8,173.88, 12,260.74 and 5,412.90 is: 8,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.88 : 12,260.74 = 5,412.90 : x
  2. Step 2: Convert to fraction form
    8,173.88/12,260.74 = 5,412.90/x
  3. Step 3: Cross multiply
    8,173.88x = 12,260.74 × 5,412.90
  4. Step 4: Simplify right side
    8,173.88x = 66,366,159.55
  5. Step 5: Solve for x
    x = 66,366,159.55/8,173.88
  6. Step 6: Final answer
    x = 8,119.30

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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.