Home / 13,977.51-19,288.97-8,012.64

Finding the Fourth Proportional to 13,977.51, 19,288.97 and 8,012.64

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Solution

The fourth proportional to 13,977.51, 19,288.97 and 8,012.64 is: 11,057.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.51 : 19,288.97 = 8,012.64 : x
  2. Step 2: Convert to fraction form
    13,977.51/19,288.97 = 8,012.64/x
  3. Step 3: Cross multiply
    13,977.51x = 19,288.97 × 8,012.64
  4. Step 4: Simplify right side
    13,977.51x = 154,555,634.90
  5. Step 5: Solve for x
    x = 154,555,634.90/13,977.51
  6. Step 6: Final answer
    x = 11,057.45

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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.