Home / 8,687.38-11,988.63-4,708.50

Finding the Fourth Proportional to 8,687.38, 11,988.63 and 4,708.50

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Solution

The fourth proportional to 8,687.38, 11,988.63 and 4,708.50 is: 6,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.38 : 11,988.63 = 4,708.50 : x
  2. Step 2: Convert to fraction form
    8,687.38/11,988.63 = 4,708.50/x
  3. Step 3: Cross multiply
    8,687.38x = 11,988.63 × 4,708.50
  4. Step 4: Simplify right side
    8,687.38x = 56,448,464.36
  5. Step 5: Solve for x
    x = 56,448,464.36/8,687.38
  6. Step 6: Final answer
    x = 6,497.75

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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.