Home / 19,111.93-28,645.89-7,415.26

Finding the Fourth Proportional to 19,111.93, 28,645.89 and 7,415.26

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Solution

The fourth proportional to 19,111.93, 28,645.89 and 7,415.26 is: 11,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.93 : 28,645.89 = 7,415.26 : x
  2. Step 2: Convert to fraction form
    19,111.93/28,645.89 = 7,415.26/x
  3. Step 3: Cross multiply
    19,111.93x = 28,645.89 × 7,415.26
  4. Step 4: Simplify right side
    19,111.93x = 212,416,722.28
  5. Step 5: Solve for x
    x = 212,416,722.28/19,111.93
  6. Step 6: Final answer
    x = 11,114.35

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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.