Home / 12,819.72-19,232.10-5,028.60

Finding the Fourth Proportional to 12,819.72, 19,232.10 and 5,028.60

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Solution

The fourth proportional to 12,819.72, 19,232.10 and 5,028.60 is: 7,543.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.72 : 19,232.10 = 5,028.60 : x
  2. Step 2: Convert to fraction form
    12,819.72/19,232.10 = 5,028.60/x
  3. Step 3: Cross multiply
    12,819.72x = 19,232.10 × 5,028.60
  4. Step 4: Simplify right side
    12,819.72x = 96,710,538.06
  5. Step 5: Solve for x
    x = 96,710,538.06/12,819.72
  6. Step 6: Final answer
    x = 7,543.89

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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.