Home / 13,858.23-19,124.33-7,570.65

Finding the Fourth Proportional to 13,858.23, 19,124.33 and 7,570.65

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Solution

The fourth proportional to 13,858.23, 19,124.33 and 7,570.65 is: 10,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.23 : 19,124.33 = 7,570.65 : x
  2. Step 2: Convert to fraction form
    13,858.23/19,124.33 = 7,570.65/x
  3. Step 3: Cross multiply
    13,858.23x = 19,124.33 × 7,570.65
  4. Step 4: Simplify right side
    13,858.23x = 144,783,571.06
  5. Step 5: Solve for x
    x = 144,783,571.06/13,858.23
  6. Step 6: Final answer
    x = 10,447.48

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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.