Home / 12,907.54-19,361.40-5,116.33

Finding the Fourth Proportional to 12,907.54, 19,361.40 and 5,116.33

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Solution

The fourth proportional to 12,907.54, 19,361.40 and 5,116.33 is: 7,674.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907.54 : 19,361.40 = 5,116.33 : x
  2. Step 2: Convert to fraction form
    12,907.54/19,361.40 = 5,116.33/x
  3. Step 3: Cross multiply
    12,907.54x = 19,361.40 × 5,116.33
  4. Step 4: Simplify right side
    12,907.54x = 99,059,311.66
  5. Step 5: Solve for x
    x = 99,059,311.66/12,907.54
  6. Step 6: Final answer
    x = 7,674.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.