Home / 7,717.90-10,650.70-4,181.11

Finding the Fourth Proportional to 7,717.90, 10,650.70 and 4,181.11

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Solution

The fourth proportional to 7,717.90, 10,650.70 and 4,181.11 is: 5,769.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.90 : 10,650.70 = 4,181.11 : x
  2. Step 2: Convert to fraction form
    7,717.90/10,650.70 = 4,181.11/x
  3. Step 3: Cross multiply
    7,717.90x = 10,650.70 × 4,181.11
  4. Step 4: Simplify right side
    7,717.90x = 44,531,711.20
  5. Step 5: Solve for x
    x = 44,531,711.20/7,717.90
  6. Step 6: Final answer
    x = 5,769.93

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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.