Home / 19,174.56-28,716.21-12,130.26

Finding the Fourth Proportional to 19,174.56, 28,716.21 and 12,130.26

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Solution

The fourth proportional to 19,174.56, 28,716.21 and 12,130.26 is: 18,166.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,174.56 : 28,716.21 = 12,130.26 : x
  2. Step 2: Convert to fraction form
    19,174.56/28,716.21 = 12,130.26/x
  3. Step 3: Cross multiply
    19,174.56x = 28,716.21 × 12,130.26
  4. Step 4: Simplify right side
    19,174.56x = 348,335,093.51
  5. Step 5: Solve for x
    x = 348,335,093.51/19,174.56
  6. Step 6: Final answer
    x = 18,166.52

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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.