Home / 12,119.68-16,735.20-7,650.88

Finding the Fourth Proportional to 12,119.68, 16,735.20 and 7,650.88

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Solution

The fourth proportional to 12,119.68, 16,735.20 and 7,650.88 is: 10,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.68 : 16,735.20 = 7,650.88 : x
  2. Step 2: Convert to fraction form
    12,119.68/16,735.20 = 7,650.88/x
  3. Step 3: Cross multiply
    12,119.68x = 16,735.20 × 7,650.88
  4. Step 4: Simplify right side
    12,119.68x = 128,039,006.98
  5. Step 5: Solve for x
    x = 128,039,006.98/12,119.68
  6. Step 6: Final answer
    x = 10,564.55

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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.