Home / 7,980.07-11,012.07-4,622.62

Finding the Fourth Proportional to 7,980.07, 11,012.07 and 4,622.62

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Solution

The fourth proportional to 7,980.07, 11,012.07 and 4,622.62 is: 6,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.07 : 11,012.07 = 4,622.62 : x
  2. Step 2: Convert to fraction form
    7,980.07/11,012.07 = 4,622.62/x
  3. Step 3: Cross multiply
    7,980.07x = 11,012.07 × 4,622.62
  4. Step 4: Simplify right side
    7,980.07x = 50,904,615.02
  5. Step 5: Solve for x
    x = 50,904,615.02/7,980.07
  6. Step 6: Final answer
    x = 6,378.97

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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.