Home / 11,113.20-16,666.56-4,186.08

Finding the Fourth Proportional to 11,113.20, 16,666.56 and 4,186.08

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Solution

The fourth proportional to 11,113.20, 16,666.56 and 4,186.08 is: 6,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.20 : 16,666.56 = 4,186.08 : x
  2. Step 2: Convert to fraction form
    11,113.20/16,666.56 = 4,186.08/x
  3. Step 3: Cross multiply
    11,113.20x = 16,666.56 × 4,186.08
  4. Step 4: Simplify right side
    11,113.20x = 69,767,553.48
  5. Step 5: Solve for x
    x = 69,767,553.48/11,113.20
  6. Step 6: Final answer
    x = 6,277.90

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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.