Home / 15,327.49-21,151.92-8,958.46

Finding the Fourth Proportional to 15,327.49, 21,151.92 and 8,958.46

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Solution

The fourth proportional to 15,327.49, 21,151.92 and 8,958.46 is: 12,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.49 : 21,151.92 = 8,958.46 : x
  2. Step 2: Convert to fraction form
    15,327.49/21,151.92 = 8,958.46/x
  3. Step 3: Cross multiply
    15,327.49x = 21,151.92 × 8,958.46
  4. Step 4: Simplify right side
    15,327.49x = 189,488,629.24
  5. Step 5: Solve for x
    x = 189,488,629.24/15,327.49
  6. Step 6: Final answer
    x = 12,362.67

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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.