Home / 16,858.32-25,287.84-5,172.72

Finding the Fourth Proportional to 16,858.32, 25,287.84 and 5,172.72

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Solution

The fourth proportional to 16,858.32, 25,287.84 and 5,172.72 is: 7,759.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,858.32 : 25,287.84 = 5,172.72 : x
  2. Step 2: Convert to fraction form
    16,858.32/25,287.84 = 5,172.72/x
  3. Step 3: Cross multiply
    16,858.32x = 25,287.84 × 5,172.72
  4. Step 4: Simplify right side
    16,858.32x = 130,806,915.72
  5. Step 5: Solve for x
    x = 130,806,915.72/16,858.32
  6. Step 6: Final answer
    x = 7,759.19

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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.