Home / 14,986.97-20,681.90-8,272.59

Finding the Fourth Proportional to 14,986.97, 20,681.90 and 8,272.59

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Solution

The fourth proportional to 14,986.97, 20,681.90 and 8,272.59 is: 11,416.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.97 : 20,681.90 = 8,272.59 : x
  2. Step 2: Convert to fraction form
    14,986.97/20,681.90 = 8,272.59/x
  3. Step 3: Cross multiply
    14,986.97x = 20,681.90 × 8,272.59
  4. Step 4: Simplify right side
    14,986.97x = 171,092,879.12
  5. Step 5: Solve for x
    x = 171,092,879.12/14,986.97
  6. Step 6: Final answer
    x = 11,416.11

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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.