Home / 8,160.03-12,245.49-5,240.43

Finding the Fourth Proportional to 8,160.03, 12,245.49 and 5,240.43

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Solution

The fourth proportional to 8,160.03, 12,245.49 and 5,240.43 is: 7,864.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.03 : 12,245.49 = 5,240.43 : x
  2. Step 2: Convert to fraction form
    8,160.03/12,245.49 = 5,240.43/x
  3. Step 3: Cross multiply
    8,160.03x = 12,245.49 × 5,240.43
  4. Step 4: Simplify right side
    8,160.03x = 64,171,633.16
  5. Step 5: Solve for x
    x = 64,171,633.16/8,160.03
  6. Step 6: Final answer
    x = 7,864.14

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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.