Home / 13,891.72-20,833.26-4,655.56

Finding the Fourth Proportional to 13,891.72, 20,833.26 and 4,655.56

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Solution

The fourth proportional to 13,891.72, 20,833.26 and 4,655.56 is: 6,981.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.72 : 20,833.26 = 4,655.56 : x
  2. Step 2: Convert to fraction form
    13,891.72/20,833.26 = 4,655.56/x
  3. Step 3: Cross multiply
    13,891.72x = 20,833.26 × 4,655.56
  4. Step 4: Simplify right side
    13,891.72x = 96,990,491.93
  5. Step 5: Solve for x
    x = 96,990,491.93/13,891.72
  6. Step 6: Final answer
    x = 6,981.89

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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.