Home / 13,616.82-18,776.97-10,779.66

Finding the Fourth Proportional to 13,616.82, 18,776.97 and 10,779.66

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Solution

The fourth proportional to 13,616.82, 18,776.97 and 10,779.66 is: 14,864.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.82 : 18,776.97 = 10,779.66 : x
  2. Step 2: Convert to fraction form
    13,616.82/18,776.97 = 10,779.66/x
  3. Step 3: Cross multiply
    13,616.82x = 18,776.97 × 10,779.66
  4. Step 4: Simplify right side
    13,616.82x = 202,409,352.43
  5. Step 5: Solve for x
    x = 202,409,352.43/13,616.82
  6. Step 6: Final answer
    x = 14,864.66

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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.