Home / 16,918.58-25,381.60-5,071.88

Finding the Fourth Proportional to 16,918.58, 25,381.60 and 5,071.88

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Solution

The fourth proportional to 16,918.58, 25,381.60 and 5,071.88 is: 7,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.58 : 25,381.60 = 5,071.88 : x
  2. Step 2: Convert to fraction form
    16,918.58/25,381.60 = 5,071.88/x
  3. Step 3: Cross multiply
    16,918.58x = 25,381.60 × 5,071.88
  4. Step 4: Simplify right side
    16,918.58x = 128,732,429.41
  5. Step 5: Solve for x
    x = 128,732,429.41/16,918.58
  6. Step 6: Final answer
    x = 7,608.94

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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.