Home / 12,163.19-16,784.69-6,858.50

Finding the Fourth Proportional to 12,163.19, 16,784.69 and 6,858.50

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Solution

The fourth proportional to 12,163.19, 16,784.69 and 6,858.50 is: 9,464.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.19 : 16,784.69 = 6,858.50 : x
  2. Step 2: Convert to fraction form
    12,163.19/16,784.69 = 6,858.50/x
  3. Step 3: Cross multiply
    12,163.19x = 16,784.69 × 6,858.50
  4. Step 4: Simplify right side
    12,163.19x = 115,117,678.15
  5. Step 5: Solve for x
    x = 115,117,678.15/12,163.19
  6. Step 6: Final answer
    x = 9,464.44

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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.