Home / 13,815.06-19,065.29-7,846.58

Finding the Fourth Proportional to 13,815.06, 19,065.29 and 7,846.58

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Solution

The fourth proportional to 13,815.06, 19,065.29 and 7,846.58 is: 10,828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.06 : 19,065.29 = 7,846.58 : x
  2. Step 2: Convert to fraction form
    13,815.06/19,065.29 = 7,846.58/x
  3. Step 3: Cross multiply
    13,815.06x = 19,065.29 × 7,846.58
  4. Step 4: Simplify right side
    13,815.06x = 149,597,188.65
  5. Step 5: Solve for x
    x = 149,597,188.65/13,815.06
  6. Step 6: Final answer
    x = 10,828.56

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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.