Home / 8,172.39-11,277.83-4,985.02

Finding the Fourth Proportional to 8,172.39, 11,277.83 and 4,985.02

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Solution

The fourth proportional to 8,172.39, 11,277.83 and 4,985.02 is: 6,879.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.39 : 11,277.83 = 4,985.02 : x
  2. Step 2: Convert to fraction form
    8,172.39/11,277.83 = 4,985.02/x
  3. Step 3: Cross multiply
    8,172.39x = 11,277.83 × 4,985.02
  4. Step 4: Simplify right side
    8,172.39x = 56,220,202.95
  5. Step 5: Solve for x
    x = 56,220,202.95/8,172.39
  6. Step 6: Final answer
    x = 6,879.28

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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.