Home / 13,992.47-20,982.11-5,666.15

Finding the Fourth Proportional to 13,992.47, 20,982.11 and 5,666.15

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Solution

The fourth proportional to 13,992.47, 20,982.11 and 5,666.15 is: 8,496.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.47 : 20,982.11 = 5,666.15 : x
  2. Step 2: Convert to fraction form
    13,992.47/20,982.11 = 5,666.15/x
  3. Step 3: Cross multiply
    13,992.47x = 20,982.11 × 5,666.15
  4. Step 4: Simplify right side
    13,992.47x = 118,887,649.34
  5. Step 5: Solve for x
    x = 118,887,649.34/13,992.47
  6. Step 6: Final answer
    x = 8,496.55

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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.