Home / 8,065.16-12,101.20-4,172.30

Finding the Fourth Proportional to 8,065.16, 12,101.20 and 4,172.30

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Solution

The fourth proportional to 8,065.16, 12,101.20 and 4,172.30 is: 6,260.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.16 : 12,101.20 = 4,172.30 : x
  2. Step 2: Convert to fraction form
    8,065.16/12,101.20 = 4,172.30/x
  3. Step 3: Cross multiply
    8,065.16x = 12,101.20 × 4,172.30
  4. Step 4: Simplify right side
    8,065.16x = 50,489,765.82
  5. Step 5: Solve for x
    x = 50,489,765.82/8,065.16
  6. Step 6: Final answer
    x = 6,260.24

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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.