Home / 8,448.20-12,672.30-2,900.80

Finding the Fourth Proportional to 8,448.20, 12,672.30 and 2,900.80

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Solution

The fourth proportional to 8,448.20, 12,672.30 and 2,900.80 is: 4,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.20 : 12,672.30 = 2,900.80 : x
  2. Step 2: Convert to fraction form
    8,448.20/12,672.30 = 2,900.80/x
  3. Step 3: Cross multiply
    8,448.20x = 12,672.30 × 2,900.80
  4. Step 4: Simplify right side
    8,448.20x = 36,759,807.84
  5. Step 5: Solve for x
    x = 36,759,807.84/8,448.20
  6. Step 6: Final answer
    x = 4,351.20

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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.