Home / 16,824.64-25,239.40-5,136.34

Finding the Fourth Proportional to 16,824.64, 25,239.40 and 5,136.34

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Solution

The fourth proportional to 16,824.64, 25,239.40 and 5,136.34 is: 7,705.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,824.64 : 25,239.40 = 5,136.34 : x
  2. Step 2: Convert to fraction form
    16,824.64/25,239.40 = 5,136.34/x
  3. Step 3: Cross multiply
    16,824.64x = 25,239.40 × 5,136.34
  4. Step 4: Simplify right side
    16,824.64x = 129,638,139.80
  5. Step 5: Solve for x
    x = 129,638,139.80/16,824.64
  6. Step 6: Final answer
    x = 7,705.25

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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.