Home / 14,861.40-20,515.86-11,874.12

Finding the Fourth Proportional to 14,861.40, 20,515.86 and 11,874.12

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Solution

The fourth proportional to 14,861.40, 20,515.86 and 11,874.12 is: 16,391.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,861.40 : 20,515.86 = 11,874.12 : x
  2. Step 2: Convert to fraction form
    14,861.40/20,515.86 = 11,874.12/x
  3. Step 3: Cross multiply
    14,861.40x = 20,515.86 × 11,874.12
  4. Step 4: Simplify right side
    14,861.40x = 243,607,783.54
  5. Step 5: Solve for x
    x = 243,607,783.54/14,861.40
  6. Step 6: Final answer
    x = 16,391.98

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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.