Home / 18,186.40-25,122.72-14,047.84

Finding the Fourth Proportional to 18,186.40, 25,122.72 and 14,047.84

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Solution

The fourth proportional to 18,186.40, 25,122.72 and 14,047.84 is: 19,405.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.40 : 25,122.72 = 14,047.84 : x
  2. Step 2: Convert to fraction form
    18,186.40/25,122.72 = 14,047.84/x
  3. Step 3: Cross multiply
    18,186.40x = 25,122.72 × 14,047.84
  4. Step 4: Simplify right side
    18,186.40x = 352,919,950.92
  5. Step 5: Solve for x
    x = 352,919,950.92/18,186.40
  6. Step 6: Final answer
    x = 19,405.71

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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.