Home / 8,286.49-11,437.77-6,619.51

Finding the Fourth Proportional to 8,286.49, 11,437.77 and 6,619.51

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Solution

The fourth proportional to 8,286.49, 11,437.77 and 6,619.51 is: 9,136.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.49 : 11,437.77 = 6,619.51 : x
  2. Step 2: Convert to fraction form
    8,286.49/11,437.77 = 6,619.51/x
  3. Step 3: Cross multiply
    8,286.49x = 11,437.77 × 6,619.51
  4. Step 4: Simplify right side
    8,286.49x = 75,712,432.89
  5. Step 5: Solve for x
    x = 75,712,432.89/8,286.49
  6. Step 6: Final answer
    x = 9,136.85

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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.