Home / 13,966.20-20,930.67-5,192.28

Finding the Fourth Proportional to 13,966.20, 20,930.67 and 5,192.28

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Solution

The fourth proportional to 13,966.20, 20,930.67 and 5,192.28 is: 7,781.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.20 : 20,930.67 = 5,192.28 : x
  2. Step 2: Convert to fraction form
    13,966.20/20,930.67 = 5,192.28/x
  3. Step 3: Cross multiply
    13,966.20x = 20,930.67 × 5,192.28
  4. Step 4: Simplify right side
    13,966.20x = 108,677,899.23
  5. Step 5: Solve for x
    x = 108,677,899.23/13,966.20
  6. Step 6: Final answer
    x = 7,781.49

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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.