Home / 12,150.40-18,228.96-4,756.96

Finding the Fourth Proportional to 12,150.40, 18,228.96 and 4,756.96

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Solution

The fourth proportional to 12,150.40, 18,228.96 and 4,756.96 is: 7,136.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.40 : 18,228.96 = 4,756.96 : x
  2. Step 2: Convert to fraction form
    12,150.40/18,228.96 = 4,756.96/x
  3. Step 3: Cross multiply
    12,150.40x = 18,228.96 × 4,756.96
  4. Step 4: Simplify right side
    12,150.40x = 86,714,433.56
  5. Step 5: Solve for x
    x = 86,714,433.56/12,150.40
  6. Step 6: Final answer
    x = 7,136.76

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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.