Home / 18,712.03-25,826.93-12,339.77

Finding the Fourth Proportional to 18,712.03, 25,826.93 and 12,339.77

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Solution

The fourth proportional to 18,712.03, 25,826.93 and 12,339.77 is: 17,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.03 : 25,826.93 = 12,339.77 : x
  2. Step 2: Convert to fraction form
    18,712.03/25,826.93 = 12,339.77/x
  3. Step 3: Cross multiply
    18,712.03x = 25,826.93 × 12,339.77
  4. Step 4: Simplify right side
    18,712.03x = 318,698,277.72
  5. Step 5: Solve for x
    x = 318,698,277.72/18,712.03
  6. Step 6: Final answer
    x = 17,031.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.