Home / 19,028.72-28,551.29-7,937.60

Finding the Fourth Proportional to 19,028.72, 28,551.29 and 7,937.60

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Solution

The fourth proportional to 19,028.72, 28,551.29 and 7,937.60 is: 11,909.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,028.72 : 28,551.29 = 7,937.60 : x
  2. Step 2: Convert to fraction form
    19,028.72/28,551.29 = 7,937.60/x
  3. Step 3: Cross multiply
    19,028.72x = 28,551.29 × 7,937.60
  4. Step 4: Simplify right side
    19,028.72x = 226,628,537.06
  5. Step 5: Solve for x
    x = 226,628,537.06/19,028.72
  6. Step 6: Final answer
    x = 11,909.81

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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.