Home / 14,879.72-20,534.60-8,165.63

Finding the Fourth Proportional to 14,879.72, 20,534.60 and 8,165.63

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Solution

The fourth proportional to 14,879.72, 20,534.60 and 8,165.63 is: 11,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,879.72 : 20,534.60 = 8,165.63 : x
  2. Step 2: Convert to fraction form
    14,879.72/20,534.60 = 8,165.63/x
  3. Step 3: Cross multiply
    14,879.72x = 20,534.60 × 8,165.63
  4. Step 4: Simplify right side
    14,879.72x = 167,677,945.80
  5. Step 5: Solve for x
    x = 167,677,945.80/14,879.72
  6. Step 6: Final answer
    x = 11,268.89

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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.