Home / 13,907.58-19,192.32-7,619.94

Finding the Fourth Proportional to 13,907.58, 19,192.32 and 7,619.94

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Solution

The fourth proportional to 13,907.58, 19,192.32 and 7,619.94 is: 10,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.58 : 19,192.32 = 7,619.94 : x
  2. Step 2: Convert to fraction form
    13,907.58/19,192.32 = 7,619.94/x
  3. Step 3: Cross multiply
    13,907.58x = 19,192.32 × 7,619.94
  4. Step 4: Simplify right side
    13,907.58x = 146,244,326.86
  5. Step 5: Solve for x
    x = 146,244,326.86/13,907.58
  6. Step 6: Final answer
    x = 10,515.44

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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.