Home / 10,289.36-15,436.78-4,450.08

Finding the Fourth Proportional to 10,289.36, 15,436.78 and 4,450.08

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Solution

The fourth proportional to 10,289.36, 15,436.78 and 4,450.08 is: 6,676.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.36 : 15,436.78 = 4,450.08 : x
  2. Step 2: Convert to fraction form
    10,289.36/15,436.78 = 4,450.08/x
  3. Step 3: Cross multiply
    10,289.36x = 15,436.78 × 4,450.08
  4. Step 4: Simplify right side
    10,289.36x = 68,694,905.94
  5. Step 5: Solve for x
    x = 68,694,905.94/10,289.36
  6. Step 6: Final answer
    x = 6,676.31

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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.