Home / 14,576.68-20,115.89-8,289.05

Finding the Fourth Proportional to 14,576.68, 20,115.89 and 8,289.05

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Solution

The fourth proportional to 14,576.68, 20,115.89 and 8,289.05 is: 11,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,576.68 : 20,115.89 = 8,289.05 : x
  2. Step 2: Convert to fraction form
    14,576.68/20,115.89 = 8,289.05/x
  3. Step 3: Cross multiply
    14,576.68x = 20,115.89 × 8,289.05
  4. Step 4: Simplify right side
    14,576.68x = 166,741,666.84
  5. Step 5: Solve for x
    x = 166,741,666.84/14,576.68
  6. Step 6: Final answer
    x = 11,438.94

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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.