Home / 13,653.70-20,488.51-5,755.73

Finding the Fourth Proportional to 13,653.70, 20,488.51 and 5,755.73

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Solution

The fourth proportional to 13,653.70, 20,488.51 and 5,755.73 is: 8,636.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.70 : 20,488.51 = 5,755.73 : x
  2. Step 2: Convert to fraction form
    13,653.70/20,488.51 = 5,755.73/x
  3. Step 3: Cross multiply
    13,653.70x = 20,488.51 × 5,755.73
  4. Step 4: Simplify right side
    13,653.70x = 117,926,298.57
  5. Step 5: Solve for x
    x = 117,926,298.57/13,653.70
  6. Step 6: Final answer
    x = 8,636.95

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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.