Home / 19,185.85-26,480.56-12,894.58

Finding the Fourth Proportional to 19,185.85, 26,480.56 and 12,894.58

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Solution

The fourth proportional to 19,185.85, 26,480.56 and 12,894.58 is: 17,797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.85 : 26,480.56 = 12,894.58 : x
  2. Step 2: Convert to fraction form
    19,185.85/26,480.56 = 12,894.58/x
  3. Step 3: Cross multiply
    19,185.85x = 26,480.56 × 12,894.58
  4. Step 4: Simplify right side
    19,185.85x = 341,455,699.36
  5. Step 5: Solve for x
    x = 341,455,699.36/19,185.85
  6. Step 6: Final answer
    x = 17,797.27

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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.