Home / 7,800.21-11,700.27-2,606.04

Finding the Fourth Proportional to 7,800.21, 11,700.27 and 2,606.04

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Solution

The fourth proportional to 7,800.21, 11,700.27 and 2,606.04 is: 3,909.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.21 : 11,700.27 = 2,606.04 : x
  2. Step 2: Convert to fraction form
    7,800.21/11,700.27 = 2,606.04/x
  3. Step 3: Cross multiply
    7,800.21x = 11,700.27 × 2,606.04
  4. Step 4: Simplify right side
    7,800.21x = 30,491,371.63
  5. Step 5: Solve for x
    x = 30,491,371.63/7,800.21
  6. Step 6: Final answer
    x = 3,909.04

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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.