Home / 18,246.34-25,191.44-13,989.51

Finding the Fourth Proportional to 18,246.34, 25,191.44 and 13,989.51

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Solution

The fourth proportional to 18,246.34, 25,191.44 and 13,989.51 is: 19,314.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.34 : 25,191.44 = 13,989.51 : x
  2. Step 2: Convert to fraction form
    18,246.34/25,191.44 = 13,989.51/x
  3. Step 3: Cross multiply
    18,246.34x = 25,191.44 × 13,989.51
  4. Step 4: Simplify right side
    18,246.34x = 352,415,901.79
  5. Step 5: Solve for x
    x = 352,415,901.79/18,246.34
  6. Step 6: Final answer
    x = 19,314.33

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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.