Home / 13,918.07-19,206.88-7,949.38

Finding the Fourth Proportional to 13,918.07, 19,206.88 and 7,949.38

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Solution

The fourth proportional to 13,918.07, 19,206.88 and 7,949.38 is: 10,970.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.07 : 19,206.88 = 7,949.38 : x
  2. Step 2: Convert to fraction form
    13,918.07/19,206.88 = 7,949.38/x
  3. Step 3: Cross multiply
    13,918.07x = 19,206.88 × 7,949.38
  4. Step 4: Simplify right side
    13,918.07x = 152,682,787.73
  5. Step 5: Solve for x
    x = 152,682,787.73/13,918.07
  6. Step 6: Final answer
    x = 10,970.11

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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.