Home / 19,170-26,454.60-10,786.68

Finding the Fourth Proportional to 19,170, 26,454.60 and 10,786.68

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Solution

The fourth proportional to 19,170, 26,454.60 and 10,786.68 is: 14,885.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170 : 26,454.60 = 10,786.68 : x
  2. Step 2: Convert to fraction form
    19,170/26,454.60 = 10,786.68/x
  3. Step 3: Cross multiply
    19,170x = 26,454.60 × 10,786.68
  4. Step 4: Simplify right side
    19,170x = 285,357,304.73
  5. Step 5: Solve for x
    x = 285,357,304.73/19,170
  6. Step 6: Final answer
    x = 14,885.62

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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.