Home / 13,891.30-20,882.10-11,148.03

Finding the Fourth Proportional to 13,891.30, 20,882.10 and 11,148.03

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Solution

The fourth proportional to 13,891.30, 20,882.10 and 11,148.03 is: 16,758.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.30 : 20,882.10 = 11,148.03 : x
  2. Step 2: Convert to fraction form
    13,891.30/20,882.10 = 11,148.03/x
  3. Step 3: Cross multiply
    13,891.30x = 20,882.10 × 11,148.03
  4. Step 4: Simplify right side
    13,891.30x = 232,794,319.07
  5. Step 5: Solve for x
    x = 232,794,319.07/13,891.30
  6. Step 6: Final answer
    x = 16,758.28

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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.