Home / 11,984.16-16,538.40-6,679.47

Finding the Fourth Proportional to 11,984.16, 16,538.40 and 6,679.47

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Solution

The fourth proportional to 11,984.16, 16,538.40 and 6,679.47 is: 9,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.16 : 16,538.40 = 6,679.47 : x
  2. Step 2: Convert to fraction form
    11,984.16/16,538.40 = 6,679.47/x
  3. Step 3: Cross multiply
    11,984.16x = 16,538.40 × 6,679.47
  4. Step 4: Simplify right side
    11,984.16x = 110,467,746.65
  5. Step 5: Solve for x
    x = 110,467,746.65/11,984.16
  6. Step 6: Final answer
    x = 9,217.81

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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.