Home / 19,166.93-28,738.09-12,585.43

Finding the Fourth Proportional to 19,166.93, 28,738.09 and 12,585.43

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Solution

The fourth proportional to 19,166.93, 28,738.09 and 12,585.43 is: 18,870.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166.93 : 28,738.09 = 12,585.43 : x
  2. Step 2: Convert to fraction form
    19,166.93/28,738.09 = 12,585.43/x
  3. Step 3: Cross multiply
    19,166.93x = 28,738.09 × 12,585.43
  4. Step 4: Simplify right side
    19,166.93x = 361,681,271.68
  5. Step 5: Solve for x
    x = 361,681,271.68/19,166.93
  6. Step 6: Final answer
    x = 18,870.06

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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.