Home / 14,805.10-20,431.29-8,835.61

Finding the Fourth Proportional to 14,805.10, 20,431.29 and 8,835.61

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Solution

The fourth proportional to 14,805.10, 20,431.29 and 8,835.61 is: 12,193.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,805.10 : 20,431.29 = 8,835.61 : x
  2. Step 2: Convert to fraction form
    14,805.10/20,431.29 = 8,835.61/x
  3. Step 3: Cross multiply
    14,805.10x = 20,431.29 × 8,835.61
  4. Step 4: Simplify right side
    14,805.10x = 180,522,910.24
  5. Step 5: Solve for x
    x = 180,522,910.24/14,805.10
  6. Step 6: Final answer
    x = 12,193.29

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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.