Home / 12,118.46-18,170.23-4,714.28

Finding the Fourth Proportional to 12,118.46, 18,170.23 and 4,714.28

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Solution

The fourth proportional to 12,118.46, 18,170.23 and 4,714.28 is: 7,068.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.46 : 18,170.23 = 4,714.28 : x
  2. Step 2: Convert to fraction form
    12,118.46/18,170.23 = 4,714.28/x
  3. Step 3: Cross multiply
    12,118.46x = 18,170.23 × 4,714.28
  4. Step 4: Simplify right side
    12,118.46x = 85,659,551.88
  5. Step 5: Solve for x
    x = 85,659,551.88/12,118.46
  6. Step 6: Final answer
    x = 7,068.52

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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.