Home / 13,643.10-18,826.43-7,673.58

Finding the Fourth Proportional to 13,643.10, 18,826.43 and 7,673.58

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Solution

The fourth proportional to 13,643.10, 18,826.43 and 7,673.58 is: 10,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.10 : 18,826.43 = 7,673.58 : x
  2. Step 2: Convert to fraction form
    13,643.10/18,826.43 = 7,673.58/x
  3. Step 3: Cross multiply
    13,643.10x = 18,826.43 × 7,673.58
  4. Step 4: Simplify right side
    13,643.10x = 144,466,078.35
  5. Step 5: Solve for x
    x = 144,466,078.35/13,643.10
  6. Step 6: Final answer
    x = 10,588.95

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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.