Home / 18,425.20-25,406.70-12,446.49

Finding the Fourth Proportional to 18,425.20, 25,406.70 and 12,446.49

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Solution

The fourth proportional to 18,425.20, 25,406.70 and 12,446.49 is: 17,162.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.20 : 25,406.70 = 12,446.49 : x
  2. Step 2: Convert to fraction form
    18,425.20/25,406.70 = 12,446.49/x
  3. Step 3: Cross multiply
    18,425.20x = 25,406.70 × 12,446.49
  4. Step 4: Simplify right side
    18,425.20x = 316,224,237.48
  5. Step 5: Solve for x
    x = 316,224,237.48/18,425.20
  6. Step 6: Final answer
    x = 17,162.59

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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.