Home / 12,217.06-16,856.60-7,180.89

Finding the Fourth Proportional to 12,217.06, 16,856.60 and 7,180.89

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Solution

The fourth proportional to 12,217.06, 16,856.60 and 7,180.89 is: 9,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.06 : 16,856.60 = 7,180.89 : x
  2. Step 2: Convert to fraction form
    12,217.06/16,856.60 = 7,180.89/x
  3. Step 3: Cross multiply
    12,217.06x = 16,856.60 × 7,180.89
  4. Step 4: Simplify right side
    12,217.06x = 121,045,390.37
  5. Step 5: Solve for x
    x = 121,045,390.37/12,217.06
  6. Step 6: Final answer
    x = 9,907.90

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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.