Home / 14,770.38-20,383.50-9,108.86

Finding the Fourth Proportional to 14,770.38, 20,383.50 and 9,108.86

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Solution

The fourth proportional to 14,770.38, 20,383.50 and 9,108.86 is: 12,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,770.38 : 20,383.50 = 9,108.86 : x
  2. Step 2: Convert to fraction form
    14,770.38/20,383.50 = 9,108.86/x
  3. Step 3: Cross multiply
    14,770.38x = 20,383.50 × 9,108.86
  4. Step 4: Simplify right side
    14,770.38x = 185,670,447.81
  5. Step 5: Solve for x
    x = 185,670,447.81/14,770.38
  6. Step 6: Final answer
    x = 12,570.46

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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.