Home / 14,045.61-21,055.40-5,286.33

Finding the Fourth Proportional to 14,045.61, 21,055.40 and 5,286.33

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Solution

The fourth proportional to 14,045.61, 21,055.40 and 5,286.33 is: 7,924.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045.61 : 21,055.40 = 5,286.33 : x
  2. Step 2: Convert to fraction form
    14,045.61/21,055.40 = 5,286.33/x
  3. Step 3: Cross multiply
    14,045.61x = 21,055.40 × 5,286.33
  4. Step 4: Simplify right side
    14,045.61x = 111,305,766.25
  5. Step 5: Solve for x
    x = 111,305,766.25/14,045.61
  6. Step 6: Final answer
    x = 7,924.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.