Home / 8,687.46-11,988.63-4,708.62

Finding the Fourth Proportional to 8,687.46, 11,988.63 and 4,708.62

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Solution

The fourth proportional to 8,687.46, 11,988.63 and 4,708.62 is: 6,497.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.46 : 11,988.63 = 4,708.62 : x
  2. Step 2: Convert to fraction form
    8,687.46/11,988.63 = 4,708.62/x
  3. Step 3: Cross multiply
    8,687.46x = 11,988.63 × 4,708.62
  4. Step 4: Simplify right side
    8,687.46x = 56,449,902.99
  5. Step 5: Solve for x
    x = 56,449,902.99/8,687.46
  6. Step 6: Final answer
    x = 6,497.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.