Home / 13,416.60-20,127.78-4,055.88

Finding the Fourth Proportional to 13,416.60, 20,127.78 and 4,055.88

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Solution

The fourth proportional to 13,416.60, 20,127.78 and 4,055.88 is: 6,084.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.60 : 20,127.78 = 4,055.88 : x
  2. Step 2: Convert to fraction form
    13,416.60/20,127.78 = 4,055.88/x
  3. Step 3: Cross multiply
    13,416.60x = 20,127.78 × 4,055.88
  4. Step 4: Simplify right side
    13,416.60x = 81,635,860.35
  5. Step 5: Solve for x
    x = 81,635,860.35/13,416.60
  6. Step 6: Final answer
    x = 6,084.69

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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.