Home / 12,965.10-17,907.96-11,705.54

Finding the Fourth Proportional to 12,965.10, 17,907.96 and 11,705.54

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Solution

The fourth proportional to 12,965.10, 17,907.96 and 11,705.54 is: 16,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.10 : 17,907.96 = 11,705.54 : x
  2. Step 2: Convert to fraction form
    12,965.10/17,907.96 = 11,705.54/x
  3. Step 3: Cross multiply
    12,965.10x = 17,907.96 × 11,705.54
  4. Step 4: Simplify right side
    12,965.10x = 209,622,342.10
  5. Step 5: Solve for x
    x = 209,622,342.10/12,965.10
  6. Step 6: Final answer
    x = 16,168.20

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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.