Home / 8,137.47-11,229.61-4,780.59

Finding the Fourth Proportional to 8,137.47, 11,229.61 and 4,780.59

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Solution

The fourth proportional to 8,137.47, 11,229.61 and 4,780.59 is: 6,597.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.47 : 11,229.61 = 4,780.59 : x
  2. Step 2: Convert to fraction form
    8,137.47/11,229.61 = 4,780.59/x
  3. Step 3: Cross multiply
    8,137.47x = 11,229.61 × 4,780.59
  4. Step 4: Simplify right side
    8,137.47x = 53,684,137.37
  5. Step 5: Solve for x
    x = 53,684,137.37/8,137.47
  6. Step 6: Final answer
    x = 6,597.15

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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.