Home / 13,515.57-20,264.96-5,623.61

Finding the Fourth Proportional to 13,515.57, 20,264.96 and 5,623.61

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Solution

The fourth proportional to 13,515.57, 20,264.96 and 5,623.61 is: 8,431.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.57 : 20,264.96 = 5,623.61 : x
  2. Step 2: Convert to fraction form
    13,515.57/20,264.96 = 5,623.61/x
  3. Step 3: Cross multiply
    13,515.57x = 20,264.96 × 5,623.61
  4. Step 4: Simplify right side
    13,515.57x = 113,962,102.26
  5. Step 5: Solve for x
    x = 113,962,102.26/13,515.57
  6. Step 6: Final answer
    x = 8,431.91

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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.