Home / 11,780.80-17,681.46-6,238.12

Finding the Fourth Proportional to 11,780.80, 17,681.46 and 6,238.12

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Solution

The fourth proportional to 11,780.80, 17,681.46 and 6,238.12 is: 9,362.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.80 : 17,681.46 = 6,238.12 : x
  2. Step 2: Convert to fraction form
    11,780.80/17,681.46 = 6,238.12/x
  3. Step 3: Cross multiply
    11,780.80x = 17,681.46 × 6,238.12
  4. Step 4: Simplify right side
    11,780.80x = 110,299,069.26
  5. Step 5: Solve for x
    x = 110,299,069.26/11,780.80
  6. Step 6: Final answer
    x = 9,362.61

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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.