Home / 11,983.07-16,539.86-8,635.55

Finding the Fourth Proportional to 11,983.07, 16,539.86 and 8,635.55

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Solution

The fourth proportional to 11,983.07, 16,539.86 and 8,635.55 is: 11,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.07 : 16,539.86 = 8,635.55 : x
  2. Step 2: Convert to fraction form
    11,983.07/16,539.86 = 8,635.55/x
  3. Step 3: Cross multiply
    11,983.07x = 16,539.86 × 8,635.55
  4. Step 4: Simplify right side
    11,983.07x = 142,830,726.91
  5. Step 5: Solve for x
    x = 142,830,726.91/11,983.07
  6. Step 6: Final answer
    x = 11,919.37

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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.