Home / 13,616.10-18,792.41-12,726.72

Finding the Fourth Proportional to 13,616.10, 18,792.41 and 12,726.72

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Solution

The fourth proportional to 13,616.10, 18,792.41 and 12,726.72 is: 17,564.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.10 : 18,792.41 = 12,726.72 : x
  2. Step 2: Convert to fraction form
    13,616.10/18,792.41 = 12,726.72/x
  3. Step 3: Cross multiply
    13,616.10x = 18,792.41 × 12,726.72
  4. Step 4: Simplify right side
    13,616.10x = 239,165,676.56
  5. Step 5: Solve for x
    x = 239,165,676.56/13,616.10
  6. Step 6: Final answer
    x = 17,564.92

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1.5x scale

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.