Home / 8,117.58-12,168.93-2,922.18

Finding the Fourth Proportional to 8,117.58, 12,168.93 and 2,922.18

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Solution

The fourth proportional to 8,117.58, 12,168.93 and 2,922.18 is: 4,380.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.58 : 12,168.93 = 2,922.18 : x
  2. Step 2: Convert to fraction form
    8,117.58/12,168.93 = 2,922.18/x
  3. Step 3: Cross multiply
    8,117.58x = 12,168.93 × 2,922.18
  4. Step 4: Simplify right side
    8,117.58x = 35,559,803.87
  5. Step 5: Solve for x
    x = 35,559,803.87/8,117.58
  6. Step 6: Final answer
    x = 4,380.59

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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.