Home / 7,982.16-11,021.32-4,842.60

Finding the Fourth Proportional to 7,982.16, 11,021.32 and 4,842.60

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Solution

The fourth proportional to 7,982.16, 11,021.32 and 4,842.60 is: 6,686.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.16 : 11,021.32 = 4,842.60 : x
  2. Step 2: Convert to fraction form
    7,982.16/11,021.32 = 4,842.60/x
  3. Step 3: Cross multiply
    7,982.16x = 11,021.32 × 4,842.60
  4. Step 4: Simplify right side
    7,982.16x = 53,371,844.23
  5. Step 5: Solve for x
    x = 53,371,844.23/7,982.16
  6. Step 6: Final answer
    x = 6,686.39

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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.