Home / 13,606.29-20,393.01-7,028.91

Finding the Fourth Proportional to 13,606.29, 20,393.01 and 7,028.91

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Solution

The fourth proportional to 13,606.29, 20,393.01 and 7,028.91 is: 10,534.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.29 : 20,393.01 = 7,028.91 : x
  2. Step 2: Convert to fraction form
    13,606.29/20,393.01 = 7,028.91/x
  3. Step 3: Cross multiply
    13,606.29x = 20,393.01 × 7,028.91
  4. Step 4: Simplify right side
    13,606.29x = 143,340,631.92
  5. Step 5: Solve for x
    x = 143,340,631.92/13,606.29
  6. Step 6: Final answer
    x = 10,534.88

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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.