Home / 14,631.12-20,190.85-8,259.77

Finding the Fourth Proportional to 14,631.12, 20,190.85 and 8,259.77

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Solution

The fourth proportional to 14,631.12, 20,190.85 and 8,259.77 is: 11,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.12 : 20,190.85 = 8,259.77 : x
  2. Step 2: Convert to fraction form
    14,631.12/20,190.85 = 8,259.77/x
  3. Step 3: Cross multiply
    14,631.12x = 20,190.85 × 8,259.77
  4. Step 4: Simplify right side
    14,631.12x = 166,771,676.15
  5. Step 5: Solve for x
    x = 166,771,676.15/14,631.12
  6. Step 6: Final answer
    x = 11,398.43

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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.