Home / 19,716.72-27,199.56-13,345.56

Finding the Fourth Proportional to 19,716.72, 27,199.56 and 13,345.56

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Solution

The fourth proportional to 19,716.72, 27,199.56 and 13,345.56 is: 18,410.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,716.72 : 27,199.56 = 13,345.56 : x
  2. Step 2: Convert to fraction form
    19,716.72/27,199.56 = 13,345.56/x
  3. Step 3: Cross multiply
    19,716.72x = 27,199.56 × 13,345.56
  4. Step 4: Simplify right side
    19,716.72x = 362,993,359.95
  5. Step 5: Solve for x
    x = 362,993,359.95/19,716.72
  6. Step 6: Final answer
    x = 18,410.43

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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.