Home / 14,449.21-19,936.69-8,398.51

Finding the Fourth Proportional to 14,449.21, 19,936.69 and 8,398.51

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Solution

The fourth proportional to 14,449.21, 19,936.69 and 8,398.51 is: 11,588.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,449.21 : 19,936.69 = 8,398.51 : x
  2. Step 2: Convert to fraction form
    14,449.21/19,936.69 = 8,398.51/x
  3. Step 3: Cross multiply
    14,449.21x = 19,936.69 × 8,398.51
  4. Step 4: Simplify right side
    14,449.21x = 167,438,419.49
  5. Step 5: Solve for x
    x = 167,438,419.49/14,449.21
  6. Step 6: Final answer
    x = 11,588.07

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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.