Home / 14,739.21-20,339.64-8,769.51

Finding the Fourth Proportional to 14,739.21, 20,339.64 and 8,769.51

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Solution

The fourth proportional to 14,739.21, 20,339.64 and 8,769.51 is: 12,101.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,739.21 : 20,339.64 = 8,769.51 : x
  2. Step 2: Convert to fraction form
    14,739.21/20,339.64 = 8,769.51/x
  3. Step 3: Cross multiply
    14,739.21x = 20,339.64 × 8,769.51
  4. Step 4: Simplify right side
    14,739.21x = 178,368,676.38
  5. Step 5: Solve for x
    x = 178,368,676.38/14,739.21
  6. Step 6: Final answer
    x = 12,101.64

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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.