Home / 10,828.70-16,243.05-10,172.60

Finding the Fourth Proportional to 10,828.70, 16,243.05 and 10,172.60

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Solution

The fourth proportional to 10,828.70, 16,243.05 and 10,172.60 is: 15,258.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,828.70 : 16,243.05 = 10,172.60 : x
  2. Step 2: Convert to fraction form
    10,828.70/16,243.05 = 10,172.60/x
  3. Step 3: Cross multiply
    10,828.70x = 16,243.05 × 10,172.60
  4. Step 4: Simplify right side
    10,828.70x = 165,234,050.43
  5. Step 5: Solve for x
    x = 165,234,050.43/10,828.70
  6. Step 6: Final answer
    x = 15,258.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.