Home / 11,985.66-16,540.00-6,534.78

Finding the Fourth Proportional to 11,985.66, 16,540.00 and 6,534.78

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Solution

The fourth proportional to 11,985.66, 16,540.00 and 6,534.78 is: 9,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.66 : 16,540.00 = 6,534.78 : x
  2. Step 2: Convert to fraction form
    11,985.66/16,540.00 = 6,534.78/x
  3. Step 3: Cross multiply
    11,985.66x = 16,540.00 × 6,534.78
  4. Step 4: Simplify right side
    11,985.66x = 108,085,244.86
  5. Step 5: Solve for x
    x = 108,085,244.86/11,985.66
  6. Step 6: Final answer
    x = 9,017.88

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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.