Home / 8,478.06-12,720.93-3,797.57

Finding the Fourth Proportional to 8,478.06, 12,720.93 and 3,797.57

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Solution

The fourth proportional to 8,478.06, 12,720.93 and 3,797.57 is: 5,698.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478.06 : 12,720.93 = 3,797.57 : x
  2. Step 2: Convert to fraction form
    8,478.06/12,720.93 = 3,797.57/x
  3. Step 3: Cross multiply
    8,478.06x = 12,720.93 × 3,797.57
  4. Step 4: Simplify right side
    8,478.06x = 48,308,622.14
  5. Step 5: Solve for x
    x = 48,308,622.14/8,478.06
  6. Step 6: Final answer
    x = 5,698.08

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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.