Home / 14,739.19-20,339.87-8,770.70

Finding the Fourth Proportional to 14,739.19, 20,339.87 and 8,770.70

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Solution

The fourth proportional to 14,739.19, 20,339.87 and 8,770.70 is: 12,103.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,739.19 : 20,339.87 = 8,770.70 : x
  2. Step 2: Convert to fraction form
    14,739.19/20,339.87 = 8,770.70/x
  3. Step 3: Cross multiply
    14,739.19x = 20,339.87 × 8,770.70
  4. Step 4: Simplify right side
    14,739.19x = 178,394,904.81
  5. Step 5: Solve for x
    x = 178,394,904.81/14,739.19
  6. Step 6: Final answer
    x = 12,103.44

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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.