Home / 6,148.98-9,231.23-5,121.50

Finding the Fourth Proportional to 6,148.98, 9,231.23 and 5,121.50

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Solution

The fourth proportional to 6,148.98, 9,231.23 and 5,121.50 is: 7,688.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,148.98 : 9,231.23 = 5,121.50 : x
  2. Step 2: Convert to fraction form
    6,148.98/9,231.23 = 5,121.50/x
  3. Step 3: Cross multiply
    6,148.98x = 9,231.23 × 5,121.50
  4. Step 4: Simplify right side
    6,148.98x = 47,277,711.09
  5. Step 5: Solve for x
    x = 47,277,711.09/6,148.98
  6. Step 6: Final answer
    x = 7,688.71

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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.