Home / 9,128.15-13,693.92-2,889.74

Finding the Fourth Proportional to 9,128.15, 13,693.92 and 2,889.74

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Solution

The fourth proportional to 9,128.15, 13,693.92 and 2,889.74 is: 4,335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.15 : 13,693.92 = 2,889.74 : x
  2. Step 2: Convert to fraction form
    9,128.15/13,693.92 = 2,889.74/x
  3. Step 3: Cross multiply
    9,128.15x = 13,693.92 × 2,889.74
  4. Step 4: Simplify right side
    9,128.15x = 39,571,785.46
  5. Step 5: Solve for x
    x = 39,571,785.46/9,128.15
  6. Step 6: Final answer
    x = 4,335.14

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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.