Home / 13,666.50-20,497.92-5,340.72

Finding the Fourth Proportional to 13,666.50, 20,497.92 and 5,340.72

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Solution

The fourth proportional to 13,666.50, 20,497.92 and 5,340.72 is: 8,010.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.50 : 20,497.92 = 5,340.72 : x
  2. Step 2: Convert to fraction form
    13,666.50/20,497.92 = 5,340.72/x
  3. Step 3: Cross multiply
    13,666.50x = 20,497.92 × 5,340.72
  4. Step 4: Simplify right side
    13,666.50x = 109,473,651.30
  5. Step 5: Solve for x
    x = 109,473,651.30/13,666.50
  6. Step 6: Final answer
    x = 8,010.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.