Home / 12,585.27-18,876.70-3,820.26

Finding the Fourth Proportional to 12,585.27, 18,876.70 and 3,820.26

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Solution

The fourth proportional to 12,585.27, 18,876.70 and 3,820.26 is: 5,730.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.27 : 18,876.70 = 3,820.26 : x
  2. Step 2: Convert to fraction form
    12,585.27/18,876.70 = 3,820.26/x
  3. Step 3: Cross multiply
    12,585.27x = 18,876.70 × 3,820.26
  4. Step 4: Simplify right side
    12,585.27x = 72,113,956.02
  5. Step 5: Solve for x
    x = 72,113,956.02/12,585.27
  6. Step 6: Final answer
    x = 5,730.03

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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.