Home / 10,257.34-15,388.80-3,331.84

Finding the Fourth Proportional to 10,257.34, 15,388.80 and 3,331.84

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Solution

The fourth proportional to 10,257.34, 15,388.80 and 3,331.84 is: 4,998.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.34 : 15,388.80 = 3,331.84 : x
  2. Step 2: Convert to fraction form
    10,257.34/15,388.80 = 3,331.84/x
  3. Step 3: Cross multiply
    10,257.34x = 15,388.80 × 3,331.84
  4. Step 4: Simplify right side
    10,257.34x = 51,273,019.39
  5. Step 5: Solve for x
    x = 51,273,019.39/10,257.34
  6. Step 6: Final answer
    x = 4,998.67

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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.