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Finding the Fourth Proportional to 8,351.70, 12,510.53 and 3,955.83

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Solution

The fourth proportional to 8,351.70, 12,510.53 and 3,955.83 is: 5,925.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.70 : 12,510.53 = 3,955.83 : x
  2. Step 2: Convert to fraction form
    8,351.70/12,510.53 = 3,955.83/x
  3. Step 3: Cross multiply
    8,351.70x = 12,510.53 × 3,955.83
  4. Step 4: Simplify right side
    8,351.70x = 49,489,529.89
  5. Step 5: Solve for x
    x = 49,489,529.89/8,351.70
  6. Step 6: Final answer
    x = 5,925.68

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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.