Home / 11,905.55-17,859.51-4,411.11

Finding the Fourth Proportional to 11,905.55, 17,859.51 and 4,411.11

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Solution

The fourth proportional to 11,905.55, 17,859.51 and 4,411.11 is: 6,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.55 : 17,859.51 = 4,411.11 : x
  2. Step 2: Convert to fraction form
    11,905.55/17,859.51 = 4,411.11/x
  3. Step 3: Cross multiply
    11,905.55x = 17,859.51 × 4,411.11
  4. Step 4: Simplify right side
    11,905.55x = 78,780,263.16
  5. Step 5: Solve for x
    x = 78,780,263.16/11,905.55
  6. Step 6: Final answer
    x = 6,617.11

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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.