Home / 13,022.56-17,965.52-8,776.36

Finding the Fourth Proportional to 13,022.56, 17,965.52 and 8,776.36

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Solution

The fourth proportional to 13,022.56, 17,965.52 and 8,776.36 is: 12,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,022.56 : 17,965.52 = 8,776.36 : x
  2. Step 2: Convert to fraction form
    13,022.56/17,965.52 = 8,776.36/x
  3. Step 3: Cross multiply
    13,022.56x = 17,965.52 × 8,776.36
  4. Step 4: Simplify right side
    13,022.56x = 157,671,932.54
  5. Step 5: Solve for x
    x = 157,671,932.54/13,022.56
  6. Step 6: Final answer
    x = 12,107.60

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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.