Home / 18,682.51-25,783.68-13,958.59

Finding the Fourth Proportional to 18,682.51, 25,783.68 and 13,958.59

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Solution

The fourth proportional to 18,682.51, 25,783.68 and 13,958.59 is: 19,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.51 : 25,783.68 = 13,958.59 : x
  2. Step 2: Convert to fraction form
    18,682.51/25,783.68 = 13,958.59/x
  3. Step 3: Cross multiply
    18,682.51x = 25,783.68 × 13,958.59
  4. Step 4: Simplify right side
    18,682.51x = 359,903,817.81
  5. Step 5: Solve for x
    x = 359,903,817.81/18,682.51
  6. Step 6: Final answer
    x = 19,264.21

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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.