Home / 14,480.12-19,980.87-8,107.06

Finding the Fourth Proportional to 14,480.12, 19,980.87 and 8,107.06

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Solution

The fourth proportional to 14,480.12, 19,980.87 and 8,107.06 is: 11,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.12 : 19,980.87 = 8,107.06 : x
  2. Step 2: Convert to fraction form
    14,480.12/19,980.87 = 8,107.06/x
  3. Step 3: Cross multiply
    14,480.12x = 19,980.87 × 8,107.06
  4. Step 4: Simplify right side
    14,480.12x = 161,986,111.94
  5. Step 5: Solve for x
    x = 161,986,111.94/14,480.12
  6. Step 6: Final answer
    x = 11,186.79

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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.