Home / 8,678.56-13,017.74-2,104.72

Finding the Fourth Proportional to 8,678.56, 13,017.74 and 2,104.72

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Solution

The fourth proportional to 8,678.56, 13,017.74 and 2,104.72 is: 3,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.56 : 13,017.74 = 2,104.72 : x
  2. Step 2: Convert to fraction form
    8,678.56/13,017.74 = 2,104.72/x
  3. Step 3: Cross multiply
    8,678.56x = 13,017.74 × 2,104.72
  4. Step 4: Simplify right side
    8,678.56x = 27,398,697.73
  5. Step 5: Solve for x
    x = 27,398,697.73/8,678.56
  6. Step 6: Final answer
    x = 3,157.06

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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.