Home / 8,145.01-12,210.56-7,757.49

Finding the Fourth Proportional to 8,145.01, 12,210.56 and 7,757.49

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Solution

The fourth proportional to 8,145.01, 12,210.56 and 7,757.49 is: 11,629.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.01 : 12,210.56 = 7,757.49 : x
  2. Step 2: Convert to fraction form
    8,145.01/12,210.56 = 7,757.49/x
  3. Step 3: Cross multiply
    8,145.01x = 12,210.56 × 7,757.49
  4. Step 4: Simplify right side
    8,145.01x = 94,723,308.14
  5. Step 5: Solve for x
    x = 94,723,308.14/8,145.01
  6. Step 6: Final answer
    x = 11,629.62

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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.