Home / 8,446.41-12,637.80-5,185.40

Finding the Fourth Proportional to 8,446.41, 12,637.80 and 5,185.40

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Solution

The fourth proportional to 8,446.41, 12,637.80 and 5,185.40 is: 7,758.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,446.41 : 12,637.80 = 5,185.40 : x
  2. Step 2: Convert to fraction form
    8,446.41/12,637.80 = 5,185.40/x
  3. Step 3: Cross multiply
    8,446.41x = 12,637.80 × 5,185.40
  4. Step 4: Simplify right side
    8,446.41x = 65,531,984.93
  5. Step 5: Solve for x
    x = 65,531,984.93/8,446.41
  6. Step 6: Final answer
    x = 7,758.56

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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.