Home / 9,129.05-13,695.26-2,890.63

Finding the Fourth Proportional to 9,129.05, 13,695.26 and 2,890.63

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Solution

The fourth proportional to 9,129.05, 13,695.26 and 2,890.63 is: 4,336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.05 : 13,695.26 = 2,890.63 : x
  2. Step 2: Convert to fraction form
    9,129.05/13,695.26 = 2,890.63/x
  3. Step 3: Cross multiply
    9,129.05x = 13,695.26 × 2,890.63
  4. Step 4: Simplify right side
    9,129.05x = 39,587,929.41
  5. Step 5: Solve for x
    x = 39,587,929.41/9,129.05
  6. Step 6: Final answer
    x = 4,336.48

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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.