Home / 11,780.67-17,661.41-6,515.47

Finding the Fourth Proportional to 11,780.67, 17,661.41 and 6,515.47

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Solution

The fourth proportional to 11,780.67, 17,661.41 and 6,515.47 is: 9,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.67 : 17,661.41 = 6,515.47 : x
  2. Step 2: Convert to fraction form
    11,780.67/17,661.41 = 6,515.47/x
  3. Step 3: Cross multiply
    11,780.67x = 17,661.41 × 6,515.47
  4. Step 4: Simplify right side
    11,780.67x = 115,072,266.13
  5. Step 5: Solve for x
    x = 115,072,266.13/11,780.67
  6. Step 6: Final answer
    x = 9,767.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.