Home / 7,072.24-9,760.32-5,300.80

Finding the Fourth Proportional to 7,072.24, 9,760.32 and 5,300.80

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Solution

The fourth proportional to 7,072.24, 9,760.32 and 5,300.80 is: 7,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.24 : 9,760.32 = 5,300.80 : x
  2. Step 2: Convert to fraction form
    7,072.24/9,760.32 = 5,300.80/x
  3. Step 3: Cross multiply
    7,072.24x = 9,760.32 × 5,300.80
  4. Step 4: Simplify right side
    7,072.24x = 51,737,504.26
  5. Step 5: Solve for x
    x = 51,737,504.26/7,072.24
  6. Step 6: Final answer
    x = 7,315.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.