Home / 18,311.74-25,269.78-10,353.49

Finding the Fourth Proportional to 18,311.74, 25,269.78 and 10,353.49

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Solution

The fourth proportional to 18,311.74, 25,269.78 and 10,353.49 is: 14,287.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.74 : 25,269.78 = 10,353.49 : x
  2. Step 2: Convert to fraction form
    18,311.74/25,269.78 = 10,353.49/x
  3. Step 3: Cross multiply
    18,311.74x = 25,269.78 × 10,353.49
  4. Step 4: Simplify right side
    18,311.74x = 261,630,414.53
  5. Step 5: Solve for x
    x = 261,630,414.53/18,311.74
  6. Step 6: Final answer
    x = 14,287.58

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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.