Home / 9,723.80-13,416.56-5,745.51

Finding the Fourth Proportional to 9,723.80, 13,416.56 and 5,745.51

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Solution

The fourth proportional to 9,723.80, 13,416.56 and 5,745.51 is: 7,927.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,723.80 : 13,416.56 = 5,745.51 : x
  2. Step 2: Convert to fraction form
    9,723.80/13,416.56 = 5,745.51/x
  3. Step 3: Cross multiply
    9,723.80x = 13,416.56 × 5,745.51
  4. Step 4: Simplify right side
    9,723.80x = 77,084,979.65
  5. Step 5: Solve for x
    x = 77,084,979.65/9,723.80
  6. Step 6: Final answer
    x = 7,927.45

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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.