Home / 19,175.45-28,751.43-7,475

Finding the Fourth Proportional to 19,175.45, 28,751.43 and 7,475

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Solution

The fourth proportional to 19,175.45, 28,751.43 and 7,475 is: 11,207.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,175.45 : 28,751.43 = 7,475 : x
  2. Step 2: Convert to fraction form
    19,175.45/28,751.43 = 7,475/x
  3. Step 3: Cross multiply
    19,175.45x = 28,751.43 × 7,475
  4. Step 4: Simplify right side
    19,175.45x = 214,916,939.25
  5. Step 5: Solve for x
    x = 214,916,939.25/19,175.45
  6. Step 6: Final answer
    x = 11,207.92

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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.