Home / 13,918.33-19,207.13-7,949.95

Finding the Fourth Proportional to 13,918.33, 19,207.13 and 7,949.95

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Solution

The fourth proportional to 13,918.33, 19,207.13 and 7,949.95 is: 10,970.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.33 : 19,207.13 = 7,949.95 : x
  2. Step 2: Convert to fraction form
    13,918.33/19,207.13 = 7,949.95/x
  3. Step 3: Cross multiply
    13,918.33x = 19,207.13 × 7,949.95
  4. Step 4: Simplify right side
    13,918.33x = 152,695,635.38
  5. Step 5: Solve for x
    x = 152,695,635.38/13,918.33
  6. Step 6: Final answer
    x = 10,970.83

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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.