Home / 12,211.67-16,846.28-7,107.19

Finding the Fourth Proportional to 12,211.67, 16,846.28 and 7,107.19

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Solution

The fourth proportional to 12,211.67, 16,846.28 and 7,107.19 is: 9,804.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.67 : 16,846.28 = 7,107.19 : x
  2. Step 2: Convert to fraction form
    12,211.67/16,846.28 = 7,107.19/x
  3. Step 3: Cross multiply
    12,211.67x = 16,846.28 × 7,107.19
  4. Step 4: Simplify right side
    12,211.67x = 119,729,712.75
  5. Step 5: Solve for x
    x = 119,729,712.75/12,211.67
  6. Step 6: Final answer
    x = 9,804.53

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Half scale
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Double scale
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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.