Home / 11,186.12-16,781.21-4,608.72

Finding the Fourth Proportional to 11,186.12, 16,781.21 and 4,608.72

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Solution

The fourth proportional to 11,186.12, 16,781.21 and 4,608.72 is: 6,913.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.12 : 16,781.21 = 4,608.72 : x
  2. Step 2: Convert to fraction form
    11,186.12/16,781.21 = 4,608.72/x
  3. Step 3: Cross multiply
    11,186.12x = 16,781.21 × 4,608.72
  4. Step 4: Simplify right side
    11,186.12x = 77,339,875.11
  5. Step 5: Solve for x
    x = 77,339,875.11/11,186.12
  6. Step 6: Final answer
    x = 6,913.92

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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.