Home / 12,289.99-16,958.68-7,512.34

Finding the Fourth Proportional to 12,289.99, 16,958.68 and 7,512.34

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Solution

The fourth proportional to 12,289.99, 16,958.68 and 7,512.34 is: 10,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289.99 : 16,958.68 = 7,512.34 : x
  2. Step 2: Convert to fraction form
    12,289.99/16,958.68 = 7,512.34/x
  3. Step 3: Cross multiply
    12,289.99x = 16,958.68 × 7,512.34
  4. Step 4: Simplify right side
    12,289.99x = 127,399,370.11
  5. Step 5: Solve for x
    x = 127,399,370.11/12,289.99
  6. Step 6: Final answer
    x = 10,366.11

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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.