Home / 13,907.55-19,192.30-7,619.93

Finding the Fourth Proportional to 13,907.55, 19,192.30 and 7,619.93

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Solution

The fourth proportional to 13,907.55, 19,192.30 and 7,619.93 is: 10,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.55 : 19,192.30 = 7,619.93 : x
  2. Step 2: Convert to fraction form
    13,907.55/19,192.30 = 7,619.93/x
  3. Step 3: Cross multiply
    13,907.55x = 19,192.30 × 7,619.93
  4. Step 4: Simplify right side
    13,907.55x = 146,243,982.54
  5. Step 5: Solve for x
    x = 146,243,982.54/13,907.55
  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.