Home / 14,986.38-20,670.48-11,443.44

Finding the Fourth Proportional to 14,986.38, 20,670.48 and 11,443.44

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Solution

The fourth proportional to 14,986.38, 20,670.48 and 11,443.44 is: 15,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.38 : 20,670.48 = 11,443.44 : x
  2. Step 2: Convert to fraction form
    14,986.38/20,670.48 = 11,443.44/x
  3. Step 3: Cross multiply
    14,986.38x = 20,670.48 × 11,443.44
  4. Step 4: Simplify right side
    14,986.38x = 236,541,397.65
  5. Step 5: Solve for x
    x = 236,541,397.65/14,986.38
  6. Step 6: Final answer
    x = 15,783.76

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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.