Home / 9,115.28-13,673.22-2,540.91

Finding the Fourth Proportional to 9,115.28, 13,673.22 and 2,540.91

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Solution

The fourth proportional to 9,115.28, 13,673.22 and 2,540.91 is: 3,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.28 : 13,673.22 = 2,540.91 : x
  2. Step 2: Convert to fraction form
    9,115.28/13,673.22 = 2,540.91/x
  3. Step 3: Cross multiply
    9,115.28x = 13,673.22 × 2,540.91
  4. Step 4: Simplify right side
    9,115.28x = 34,742,421.43
  5. Step 5: Solve for x
    x = 34,742,421.43/9,115.28
  6. Step 6: Final answer
    x = 3,811.45

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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.