Home / 10,424.90-15,638.34-2,928.44

Finding the Fourth Proportional to 10,424.90, 15,638.34 and 2,928.44

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Solution

The fourth proportional to 10,424.90, 15,638.34 and 2,928.44 is: 4,392.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,424.90 : 15,638.34 = 2,928.44 : x
  2. Step 2: Convert to fraction form
    10,424.90/15,638.34 = 2,928.44/x
  3. Step 3: Cross multiply
    10,424.90x = 15,638.34 × 2,928.44
  4. Step 4: Simplify right side
    10,424.90x = 45,795,940.39
  5. Step 5: Solve for x
    x = 45,795,940.39/10,424.90
  6. Step 6: Final answer
    x = 4,392.94

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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.