Home / 11,055.40-16,580.64-6,666.82

Finding the Fourth Proportional to 11,055.40, 16,580.64 and 6,666.82

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Solution

The fourth proportional to 11,055.40, 16,580.64 and 6,666.82 is: 9,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,055.40 : 16,580.64 = 6,666.82 : x
  2. Step 2: Convert to fraction form
    11,055.40/16,580.64 = 6,666.82/x
  3. Step 3: Cross multiply
    11,055.40x = 16,580.64 × 6,666.82
  4. Step 4: Simplify right side
    11,055.40x = 110,540,142.36
  5. Step 5: Solve for x
    x = 110,540,142.36/11,055.40
  6. Step 6: Final answer
    x = 9,998.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.