Home / 6,942.21-9,543.23-5,981.55

Finding the Fourth Proportional to 6,942.21, 9,543.23 and 5,981.55

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Solution

The fourth proportional to 6,942.21, 9,543.23 and 5,981.55 is: 8,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.21 : 9,543.23 = 5,981.55 : x
  2. Step 2: Convert to fraction form
    6,942.21/9,543.23 = 5,981.55/x
  3. Step 3: Cross multiply
    6,942.21x = 9,543.23 × 5,981.55
  4. Step 4: Simplify right side
    6,942.21x = 57,083,277.50
  5. Step 5: Solve for x
    x = 57,083,277.50/6,942.21
  6. Step 6: Final answer
    x = 8,222.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.