Home / 13,988.73-20,983.17-5,223.57

Finding the Fourth Proportional to 13,988.73, 20,983.17 and 5,223.57

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Solution

The fourth proportional to 13,988.73, 20,983.17 and 5,223.57 is: 7,835.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.73 : 20,983.17 = 5,223.57 : x
  2. Step 2: Convert to fraction form
    13,988.73/20,983.17 = 5,223.57/x
  3. Step 3: Cross multiply
    13,988.73x = 20,983.17 × 5,223.57
  4. Step 4: Simplify right side
    13,988.73x = 109,607,057.32
  5. Step 5: Solve for x
    x = 109,607,057.32/13,988.73
  6. Step 6: Final answer
    x = 7,835.38

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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.