Home / 8,507.12-11,740.10-5,150.57

Finding the Fourth Proportional to 8,507.12, 11,740.10 and 5,150.57

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Solution

The fourth proportional to 8,507.12, 11,740.10 and 5,150.57 is: 7,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.12 : 11,740.10 = 5,150.57 : x
  2. Step 2: Convert to fraction form
    8,507.12/11,740.10 = 5,150.57/x
  3. Step 3: Cross multiply
    8,507.12x = 11,740.10 × 5,150.57
  4. Step 4: Simplify right side
    8,507.12x = 60,468,122.40
  5. Step 5: Solve for x
    x = 60,468,122.40/8,507.12
  6. Step 6: Final answer
    x = 7,107.95

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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.