Home / 8,225.28-12,338.58-2,678.52

Finding the Fourth Proportional to 8,225.28, 12,338.58 and 2,678.52

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Solution

The fourth proportional to 8,225.28, 12,338.58 and 2,678.52 is: 4,017.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,225.28 : 12,338.58 = 2,678.52 : x
  2. Step 2: Convert to fraction form
    8,225.28/12,338.58 = 2,678.52/x
  3. Step 3: Cross multiply
    8,225.28x = 12,338.58 × 2,678.52
  4. Step 4: Simplify right side
    8,225.28x = 33,049,133.30
  5. Step 5: Solve for x
    x = 33,049,133.30/8,225.28
  6. Step 6: Final answer
    x = 4,017.99

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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.