Home / 11,425.94-15,772.56-8,281.52

Finding the Fourth Proportional to 11,425.94, 15,772.56 and 8,281.52

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Solution

The fourth proportional to 11,425.94, 15,772.56 and 8,281.52 is: 11,431.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.94 : 15,772.56 = 8,281.52 : x
  2. Step 2: Convert to fraction form
    11,425.94/15,772.56 = 8,281.52/x
  3. Step 3: Cross multiply
    11,425.94x = 15,772.56 × 8,281.52
  4. Step 4: Simplify right side
    11,425.94x = 130,620,771.09
  5. Step 5: Solve for x
    x = 130,620,771.09/11,425.94
  6. Step 6: Final answer
    x = 11,431.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.