Home / 8,172.40-12,244.20-6,703.60

Finding the Fourth Proportional to 8,172.40, 12,244.20 and 6,703.60

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Solution

The fourth proportional to 8,172.40, 12,244.20 and 6,703.60 is: 10,043.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.40 : 12,244.20 = 6,703.60 : x
  2. Step 2: Convert to fraction form
    8,172.40/12,244.20 = 6,703.60/x
  3. Step 3: Cross multiply
    8,172.40x = 12,244.20 × 6,703.60
  4. Step 4: Simplify right side
    8,172.40x = 82,080,219.12
  5. Step 5: Solve for x
    x = 82,080,219.12/8,172.40
  6. Step 6: Final answer
    x = 10,043.59

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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.