Home / 14,158.72-19,540.60-8,190.32

Finding the Fourth Proportional to 14,158.72, 19,540.60 and 8,190.32

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Solution

The fourth proportional to 14,158.72, 19,540.60 and 8,190.32 is: 11,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.72 : 19,540.60 = 8,190.32 : x
  2. Step 2: Convert to fraction form
    14,158.72/19,540.60 = 8,190.32/x
  3. Step 3: Cross multiply
    14,158.72x = 19,540.60 × 8,190.32
  4. Step 4: Simplify right side
    14,158.72x = 160,043,766.99
  5. Step 5: Solve for x
    x = 160,043,766.99/14,158.72
  6. Step 6: Final answer
    x = 11,303.55

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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.