Home / 6,790.62-10,191.69-5,431.26

Finding the Fourth Proportional to 6,790.62, 10,191.69 and 5,431.26

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Solution

The fourth proportional to 6,790.62, 10,191.69 and 5,431.26 is: 8,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.62 : 10,191.69 = 5,431.26 : x
  2. Step 2: Convert to fraction form
    6,790.62/10,191.69 = 5,431.26/x
  3. Step 3: Cross multiply
    6,790.62x = 10,191.69 × 5,431.26
  4. Step 4: Simplify right side
    6,790.62x = 55,353,718.23
  5. Step 5: Solve for x
    x = 55,353,718.23/6,790.62
  6. Step 6: Final answer
    x = 8,151.50

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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.