Home / 8,123.52-12,185.28-2,926.56

Finding the Fourth Proportional to 8,123.52, 12,185.28 and 2,926.56

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Solution

The fourth proportional to 8,123.52, 12,185.28 and 2,926.56 is: 4,389.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.52 : 12,185.28 = 2,926.56 : x
  2. Step 2: Convert to fraction form
    8,123.52/12,185.28 = 2,926.56/x
  3. Step 3: Cross multiply
    8,123.52x = 12,185.28 × 2,926.56
  4. Step 4: Simplify right side
    8,123.52x = 35,660,953.04
  5. Step 5: Solve for x
    x = 35,660,953.04/8,123.52
  6. Step 6: Final answer
    x = 4,389.84

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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.