Home / 15,989.96-22,066.62-8,820.34

Finding the Fourth Proportional to 15,989.96, 22,066.62 and 8,820.34

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Solution

The fourth proportional to 15,989.96, 22,066.62 and 8,820.34 is: 12,172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.96 : 22,066.62 = 8,820.34 : x
  2. Step 2: Convert to fraction form
    15,989.96/22,066.62 = 8,820.34/x
  3. Step 3: Cross multiply
    15,989.96x = 22,066.62 × 8,820.34
  4. Step 4: Simplify right side
    15,989.96x = 194,635,091.05
  5. Step 5: Solve for x
    x = 194,635,091.05/15,989.96
  6. Step 6: Final answer
    x = 12,172.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.