Home / 12,201.06-16,838.04-7,165.50

Finding the Fourth Proportional to 12,201.06, 16,838.04 and 7,165.50

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Solution

The fourth proportional to 12,201.06, 16,838.04 and 7,165.50 is: 9,888.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.06 : 16,838.04 = 7,165.50 : x
  2. Step 2: Convert to fraction form
    12,201.06/16,838.04 = 7,165.50/x
  3. Step 3: Cross multiply
    12,201.06x = 16,838.04 × 7,165.50
  4. Step 4: Simplify right side
    12,201.06x = 120,652,975.62
  5. Step 5: Solve for x
    x = 120,652,975.62/12,201.06
  6. Step 6: Final answer
    x = 9,888.73

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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.