Home / 13,983.45-20,966.80-9,486.03

Finding the Fourth Proportional to 13,983.45, 20,966.80 and 9,486.03

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Solution

The fourth proportional to 13,983.45, 20,966.80 and 9,486.03 is: 14,223.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.45 : 20,966.80 = 9,486.03 : x
  2. Step 2: Convert to fraction form
    13,983.45/20,966.80 = 9,486.03/x
  3. Step 3: Cross multiply
    13,983.45x = 20,966.80 × 9,486.03
  4. Step 4: Simplify right side
    13,983.45x = 198,891,705.66
  5. Step 5: Solve for x
    x = 198,891,705.66/13,983.45
  6. Step 6: Final answer
    x = 14,223.37

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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.