Home / 13,585.31-20,382.05-11,234.69

Finding the Fourth Proportional to 13,585.31, 20,382.05 and 11,234.69

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Solution

The fourth proportional to 13,585.31, 20,382.05 and 11,234.69 is: 16,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.31 : 20,382.05 = 11,234.69 : x
  2. Step 2: Convert to fraction form
    13,585.31/20,382.05 = 11,234.69/x
  3. Step 3: Cross multiply
    13,585.31x = 20,382.05 × 11,234.69
  4. Step 4: Simplify right side
    13,585.31x = 228,986,013.31
  5. Step 5: Solve for x
    x = 228,986,013.31/13,585.31
  6. Step 6: Final answer
    x = 16,855.41

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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.