Home / 18,219.21-25,158.35-14,011.97

Finding the Fourth Proportional to 18,219.21, 25,158.35 and 14,011.97

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Solution

The fourth proportional to 18,219.21, 25,158.35 and 14,011.97 is: 19,348.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.21 : 25,158.35 = 14,011.97 : x
  2. Step 2: Convert to fraction form
    18,219.21/25,158.35 = 14,011.97/x
  3. Step 3: Cross multiply
    18,219.21x = 25,158.35 × 14,011.97
  4. Step 4: Simplify right side
    18,219.21x = 352,517,849.60
  5. Step 5: Solve for x
    x = 352,517,849.60/18,219.21
  6. Step 6: Final answer
    x = 19,348.69

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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.