Home / 8,143.58-11,237.54-4,999.80

Finding the Fourth Proportional to 8,143.58, 11,237.54 and 4,999.80

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Solution

The fourth proportional to 8,143.58, 11,237.54 and 4,999.80 is: 6,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.58 : 11,237.54 = 4,999.80 : x
  2. Step 2: Convert to fraction form
    8,143.58/11,237.54 = 4,999.80/x
  3. Step 3: Cross multiply
    8,143.58x = 11,237.54 × 4,999.80
  4. Step 4: Simplify right side
    8,143.58x = 56,185,452.49
  5. Step 5: Solve for x
    x = 56,185,452.49/8,143.58
  6. Step 6: Final answer
    x = 6,899.36

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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.