Home / 10,449.49-15,663.20-3,427.67

Finding the Fourth Proportional to 10,449.49, 15,663.20 and 3,427.67

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Solution

The fourth proportional to 10,449.49, 15,663.20 and 3,427.67 is: 5,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.49 : 15,663.20 = 3,427.67 : x
  2. Step 2: Convert to fraction form
    10,449.49/15,663.20 = 3,427.67/x
  3. Step 3: Cross multiply
    10,449.49x = 15,663.20 × 3,427.67
  4. Step 4: Simplify right side
    10,449.49x = 53,688,202.43
  5. Step 5: Solve for x
    x = 53,688,202.43/10,449.49
  6. Step 6: Final answer
    x = 5,137.88

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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.