Home / 10,906.73-15,048.96-6,428.85

Finding the Fourth Proportional to 10,906.73, 15,048.96 and 6,428.85

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Solution

The fourth proportional to 10,906.73, 15,048.96 and 6,428.85 is: 8,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,906.73 : 15,048.96 = 6,428.85 : x
  2. Step 2: Convert to fraction form
    10,906.73/15,048.96 = 6,428.85/x
  3. Step 3: Cross multiply
    10,906.73x = 15,048.96 × 6,428.85
  4. Step 4: Simplify right side
    10,906.73x = 96,747,510.60
  5. Step 5: Solve for x
    x = 96,747,510.60/10,906.73
  6. Step 6: Final answer
    x = 8,870.44

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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.