Home / 13,653.29-20,473.09-6,628.91

Finding the Fourth Proportional to 13,653.29, 20,473.09 and 6,628.91

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Solution

The fourth proportional to 13,653.29, 20,473.09 and 6,628.91 is: 9,940.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.29 : 20,473.09 = 6,628.91 : x
  2. Step 2: Convert to fraction form
    13,653.29/20,473.09 = 6,628.91/x
  3. Step 3: Cross multiply
    13,653.29x = 20,473.09 × 6,628.91
  4. Step 4: Simplify right side
    13,653.29x = 135,714,152.09
  5. Step 5: Solve for x
    x = 135,714,152.09/13,653.29
  6. Step 6: Final answer
    x = 9,940.03

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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.