Home / 12,272.14-16,945.10-9,435.12

Finding the Fourth Proportional to 12,272.14, 16,945.10 and 9,435.12

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Solution

The fourth proportional to 12,272.14, 16,945.10 and 9,435.12 is: 13,027.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.14 : 16,945.10 = 9,435.12 : x
  2. Step 2: Convert to fraction form
    12,272.14/16,945.10 = 9,435.12/x
  3. Step 3: Cross multiply
    12,272.14x = 16,945.10 × 9,435.12
  4. Step 4: Simplify right side
    12,272.14x = 159,879,051.91
  5. Step 5: Solve for x
    x = 159,879,051.91/12,272.14
  6. Step 6: Final answer
    x = 13,027.81

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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.