Home / 13,972.29-19,282.13-7,684.83

Finding the Fourth Proportional to 13,972.29, 19,282.13 and 7,684.83

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Solution

The fourth proportional to 13,972.29, 19,282.13 and 7,684.83 is: 10,605.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.29 : 19,282.13 = 7,684.83 : x
  2. Step 2: Convert to fraction form
    13,972.29/19,282.13 = 7,684.83/x
  3. Step 3: Cross multiply
    13,972.29x = 19,282.13 × 7,684.83
  4. Step 4: Simplify right side
    13,972.29x = 148,179,852.66
  5. Step 5: Solve for x
    x = 148,179,852.66/13,972.29
  6. Step 6: Final answer
    x = 10,605.27

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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.