Home / 11,909.93-17,865.81-4,012.47

Finding the Fourth Proportional to 11,909.93, 17,865.81 and 4,012.47

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Solution

The fourth proportional to 11,909.93, 17,865.81 and 4,012.47 is: 6,019.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.93 : 17,865.81 = 4,012.47 : x
  2. Step 2: Convert to fraction form
    11,909.93/17,865.81 = 4,012.47/x
  3. Step 3: Cross multiply
    11,909.93x = 17,865.81 × 4,012.47
  4. Step 4: Simplify right side
    11,909.93x = 71,686,026.65
  5. Step 5: Solve for x
    x = 71,686,026.65/11,909.93
  6. Step 6: Final answer
    x = 6,019.02

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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.