Home / 19,486.96-26,894.46-12,778.18

Finding the Fourth Proportional to 19,486.96, 26,894.46 and 12,778.18

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Solution

The fourth proportional to 19,486.96, 26,894.46 and 12,778.18 is: 17,635.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.96 : 26,894.46 = 12,778.18 : x
  2. Step 2: Convert to fraction form
    19,486.96/26,894.46 = 12,778.18/x
  3. Step 3: Cross multiply
    19,486.96x = 26,894.46 × 12,778.18
  4. Step 4: Simplify right side
    19,486.96x = 343,662,250.88
  5. Step 5: Solve for x
    x = 343,662,250.88/19,486.96
  6. Step 6: Final answer
    x = 17,635.50

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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.