Home / 19,115.09-28,669.85-5,075.97

Finding the Fourth Proportional to 19,115.09, 28,669.85 and 5,075.97

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Solution

The fourth proportional to 19,115.09, 28,669.85 and 5,075.97 is: 7,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.09 : 28,669.85 = 5,075.97 : x
  2. Step 2: Convert to fraction form
    19,115.09/28,669.85 = 5,075.97/x
  3. Step 3: Cross multiply
    19,115.09x = 28,669.85 × 5,075.97
  4. Step 4: Simplify right side
    19,115.09x = 145,527,184.65
  5. Step 5: Solve for x
    x = 145,527,184.65/19,115.09
  6. Step 6: Final answer
    x = 7,613.21

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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.