Home / 19,103.60-26,355.20-13,786.72

Finding the Fourth Proportional to 19,103.60, 26,355.20 and 13,786.72

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Solution

The fourth proportional to 19,103.60, 26,355.20 and 13,786.72 is: 19,020.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103.60 : 26,355.20 = 13,786.72 : x
  2. Step 2: Convert to fraction form
    19,103.60/26,355.20 = 13,786.72/x
  3. Step 3: Cross multiply
    19,103.60x = 26,355.20 × 13,786.72
  4. Step 4: Simplify right side
    19,103.60x = 363,351,762.94
  5. Step 5: Solve for x
    x = 363,351,762.94/19,103.60
  6. Step 6: Final answer
    x = 19,020.07

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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.