Home / 10,912.87-15,059.36-6,671.03

Finding the Fourth Proportional to 10,912.87, 15,059.36 and 6,671.03

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Solution

The fourth proportional to 10,912.87, 15,059.36 and 6,671.03 is: 9,205.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.87 : 15,059.36 = 6,671.03 : x
  2. Step 2: Convert to fraction form
    10,912.87/15,059.36 = 6,671.03/x
  3. Step 3: Cross multiply
    10,912.87x = 15,059.36 × 6,671.03
  4. Step 4: Simplify right side
    10,912.87x = 100,461,442.34
  5. Step 5: Solve for x
    x = 100,461,442.34/10,912.87
  6. Step 6: Final answer
    x = 9,205.78

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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.