Home / 9,251.28-12,855.26-9,156.56

Finding the Fourth Proportional to 9,251.28, 12,855.26 and 9,156.56

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Solution

The fourth proportional to 9,251.28, 12,855.26 and 9,156.56 is: 12,723.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,251.28 : 12,855.26 = 9,156.56 : x
  2. Step 2: Convert to fraction form
    9,251.28/12,855.26 = 9,156.56/x
  3. Step 3: Cross multiply
    9,251.28x = 12,855.26 × 9,156.56
  4. Step 4: Simplify right side
    9,251.28x = 117,709,959.51
  5. Step 5: Solve for x
    x = 117,709,959.51/9,251.28
  6. Step 6: Final answer
    x = 12,723.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.