Home / 8,211.57-11,331.96-4,485.57

Finding the Fourth Proportional to 8,211.57, 11,331.96 and 4,485.57

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Solution

The fourth proportional to 8,211.57, 11,331.96 and 4,485.57 is: 6,190.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.57 : 11,331.96 = 4,485.57 : x
  2. Step 2: Convert to fraction form
    8,211.57/11,331.96 = 4,485.57/x
  3. Step 3: Cross multiply
    8,211.57x = 11,331.96 × 4,485.57
  4. Step 4: Simplify right side
    8,211.57x = 50,830,299.82
  5. Step 5: Solve for x
    x = 50,830,299.82/8,211.57
  6. Step 6: Final answer
    x = 6,190.08

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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.