Home / 19,260.85-28,862.85-8,734.09

Finding the Fourth Proportional to 19,260.85, 28,862.85 and 8,734.09

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Solution

The fourth proportional to 19,260.85, 28,862.85 and 8,734.09 is: 13,088.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,260.85 : 28,862.85 = 8,734.09 : x
  2. Step 2: Convert to fraction form
    19,260.85/28,862.85 = 8,734.09/x
  3. Step 3: Cross multiply
    19,260.85x = 28,862.85 × 8,734.09
  4. Step 4: Simplify right side
    19,260.85x = 252,090,729.56
  5. Step 5: Solve for x
    x = 252,090,729.56/19,260.85
  6. Step 6: Final answer
    x = 13,088.25

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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.