Home / 13,935.62-19,231.36-7,648.14

Finding the Fourth Proportional to 13,935.62, 19,231.36 and 7,648.14

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Solution

The fourth proportional to 13,935.62, 19,231.36 and 7,648.14 is: 10,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.62 : 19,231.36 = 7,648.14 : x
  2. Step 2: Convert to fraction form
    13,935.62/19,231.36 = 7,648.14/x
  3. Step 3: Cross multiply
    13,935.62x = 19,231.36 × 7,648.14
  4. Step 4: Simplify right side
    13,935.62x = 147,084,133.67
  5. Step 5: Solve for x
    x = 147,084,133.67/13,935.62
  6. Step 6: Final answer
    x = 10,554.55

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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.