Home / 8,072.69-11,139.80-4,716.45

Finding the Fourth Proportional to 8,072.69, 11,139.80 and 4,716.45

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Solution

The fourth proportional to 8,072.69, 11,139.80 and 4,716.45 is: 6,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.69 : 11,139.80 = 4,716.45 : x
  2. Step 2: Convert to fraction form
    8,072.69/11,139.80 = 4,716.45/x
  3. Step 3: Cross multiply
    8,072.69x = 11,139.80 × 4,716.45
  4. Step 4: Simplify right side
    8,072.69x = 52,540,286.13
  5. Step 5: Solve for x
    x = 52,540,286.13/8,072.69
  6. Step 6: Final answer
    x = 6,508.40

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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.