Home / 7,020.75-9,689.94-4,036.62

Finding the Fourth Proportional to 7,020.75, 9,689.94 and 4,036.62

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Solution

The fourth proportional to 7,020.75, 9,689.94 and 4,036.62 is: 5,571.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.75 : 9,689.94 = 4,036.62 : x
  2. Step 2: Convert to fraction form
    7,020.75/9,689.94 = 4,036.62/x
  3. Step 3: Cross multiply
    7,020.75x = 9,689.94 × 4,036.62
  4. Step 4: Simplify right side
    7,020.75x = 39,114,605.60
  5. Step 5: Solve for x
    x = 39,114,605.60/7,020.75
  6. Step 6: Final answer
    x = 5,571.29

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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.