Home / 8,021.89-11,070.28-4,485.11

Finding the Fourth Proportional to 8,021.89, 11,070.28 and 4,485.11

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Solution

The fourth proportional to 8,021.89, 11,070.28 and 4,485.11 is: 6,189.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.89 : 11,070.28 = 4,485.11 : x
  2. Step 2: Convert to fraction form
    8,021.89/11,070.28 = 4,485.11/x
  3. Step 3: Cross multiply
    8,021.89x = 11,070.28 × 4,485.11
  4. Step 4: Simplify right side
    8,021.89x = 49,651,356.97
  5. Step 5: Solve for x
    x = 49,651,356.97/8,021.89
  6. Step 6: Final answer
    x = 6,189.49

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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.