Home / 14,391.54-19,861.20-8,104.32

Finding the Fourth Proportional to 14,391.54, 19,861.20 and 8,104.32

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Solution

The fourth proportional to 14,391.54, 19,861.20 and 8,104.32 is: 11,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.54 : 19,861.20 = 8,104.32 : x
  2. Step 2: Convert to fraction form
    14,391.54/19,861.20 = 8,104.32/x
  3. Step 3: Cross multiply
    14,391.54x = 19,861.20 × 8,104.32
  4. Step 4: Simplify right side
    14,391.54x = 160,961,520.38
  5. Step 5: Solve for x
    x = 160,961,520.38/14,391.54
  6. Step 6: Final answer
    x = 11,184.45

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Double scale
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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.