Home / 19,106.08-28,663.22-7,419.30

Finding the Fourth Proportional to 19,106.08, 28,663.22 and 7,419.30

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Solution

The fourth proportional to 19,106.08, 28,663.22 and 7,419.30 is: 11,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,106.08 : 28,663.22 = 7,419.30 : x
  2. Step 2: Convert to fraction form
    19,106.08/28,663.22 = 7,419.30/x
  3. Step 3: Cross multiply
    19,106.08x = 28,663.22 × 7,419.30
  4. Step 4: Simplify right side
    19,106.08x = 212,661,028.15
  5. Step 5: Solve for x
    x = 212,661,028.15/19,106.08
  6. Step 6: Final answer
    x = 11,130.54

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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.