Home / 6,654.12-9,980.94-3,142.86

Finding the Fourth Proportional to 6,654.12, 9,980.94 and 3,142.86

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Solution

The fourth proportional to 6,654.12, 9,980.94 and 3,142.86 is: 4,714.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,654.12 : 9,980.94 = 3,142.86 : x
  2. Step 2: Convert to fraction form
    6,654.12/9,980.94 = 3,142.86/x
  3. Step 3: Cross multiply
    6,654.12x = 9,980.94 × 3,142.86
  4. Step 4: Simplify right side
    6,654.12x = 31,368,697.09
  5. Step 5: Solve for x
    x = 31,368,697.09/6,654.12
  6. Step 6: Final answer
    x = 4,714.18

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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.