Home / 7,654.21-11,479.83-2,106.13

Finding the Fourth Proportional to 7,654.21, 11,479.83 and 2,106.13

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Solution

The fourth proportional to 7,654.21, 11,479.83 and 2,106.13 is: 3,158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,654.21 : 11,479.83 = 2,106.13 : x
  2. Step 2: Convert to fraction form
    7,654.21/11,479.83 = 2,106.13/x
  3. Step 3: Cross multiply
    7,654.21x = 11,479.83 × 2,106.13
  4. Step 4: Simplify right side
    7,654.21x = 24,178,014.36
  5. Step 5: Solve for x
    x = 24,178,014.36/7,654.21
  6. Step 6: Final answer
    x = 3,158.79

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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.