Home / 10,830.70-16,236.56-5,205.57

Finding the Fourth Proportional to 10,830.70, 16,236.56 and 5,205.57

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Solution

The fourth proportional to 10,830.70, 16,236.56 and 5,205.57 is: 7,803.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,830.70 : 16,236.56 = 5,205.57 : x
  2. Step 2: Convert to fraction form
    10,830.70/16,236.56 = 5,205.57/x
  3. Step 3: Cross multiply
    10,830.70x = 16,236.56 × 5,205.57
  4. Step 4: Simplify right side
    10,830.70x = 84,520,442.43
  5. Step 5: Solve for x
    x = 84,520,442.43/10,830.70
  6. Step 6: Final answer
    x = 7,803.78

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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.