Home / 13,888.64-20,833.09-3,500.39

Finding the Fourth Proportional to 13,888.64, 20,833.09 and 3,500.39

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Solution

The fourth proportional to 13,888.64, 20,833.09 and 3,500.39 is: 5,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.64 : 20,833.09 = 3,500.39 : x
  2. Step 2: Convert to fraction form
    13,888.64/20,833.09 = 3,500.39/x
  3. Step 3: Cross multiply
    13,888.64x = 20,833.09 × 3,500.39
  4. Step 4: Simplify right side
    13,888.64x = 72,923,939.91
  5. Step 5: Solve for x
    x = 72,923,939.91/13,888.64
  6. Step 6: Final answer
    x = 5,250.62

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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.