Home / 8,444.39-12,679.34-5,171.18

Finding the Fourth Proportional to 8,444.39, 12,679.34 and 5,171.18

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Solution

The fourth proportional to 8,444.39, 12,679.34 and 5,171.18 is: 7,764.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,444.39 : 12,679.34 = 5,171.18 : x
  2. Step 2: Convert to fraction form
    8,444.39/12,679.34 = 5,171.18/x
  3. Step 3: Cross multiply
    8,444.39x = 12,679.34 × 5,171.18
  4. Step 4: Simplify right side
    8,444.39x = 65,567,060.17
  5. Step 5: Solve for x
    x = 65,567,060.17/8,444.39
  6. Step 6: Final answer
    x = 7,764.57

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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.