Home / 7,134.20-10,714.10-6,903.80

Finding the Fourth Proportional to 7,134.20, 10,714.10 and 6,903.80

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Solution

The fourth proportional to 7,134.20, 10,714.10 and 6,903.80 is: 10,368.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.20 : 10,714.10 = 6,903.80 : x
  2. Step 2: Convert to fraction form
    7,134.20/10,714.10 = 6,903.80/x
  3. Step 3: Cross multiply
    7,134.20x = 10,714.10 × 6,903.80
  4. Step 4: Simplify right side
    7,134.20x = 73,968,003.58
  5. Step 5: Solve for x
    x = 73,968,003.58/7,134.20
  6. Step 6: Final answer
    x = 10,368.09

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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.