Home / 9,274.05-13,911.21-8,720.55

Finding the Fourth Proportional to 9,274.05, 13,911.21 and 8,720.55

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Solution

The fourth proportional to 9,274.05, 13,911.21 and 8,720.55 is: 13,080.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,274.05 : 13,911.21 = 8,720.55 : x
  2. Step 2: Convert to fraction form
    9,274.05/13,911.21 = 8,720.55/x
  3. Step 3: Cross multiply
    9,274.05x = 13,911.21 × 8,720.55
  4. Step 4: Simplify right side
    9,274.05x = 121,313,402.37
  5. Step 5: Solve for x
    x = 121,313,402.37/9,274.05
  6. Step 6: Final answer
    x = 13,080.95

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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.