Home / 15,154.46-20,922.73-11,168.63

Finding the Fourth Proportional to 15,154.46, 20,922.73 and 11,168.63

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Solution

The fourth proportional to 15,154.46, 20,922.73 and 11,168.63 is: 15,419.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.46 : 20,922.73 = 11,168.63 : x
  2. Step 2: Convert to fraction form
    15,154.46/20,922.73 = 11,168.63/x
  3. Step 3: Cross multiply
    15,154.46x = 20,922.73 × 11,168.63
  4. Step 4: Simplify right side
    15,154.46x = 233,678,229.96
  5. Step 5: Solve for x
    x = 233,678,229.96/15,154.46
  6. Step 6: Final answer
    x = 15,419.77

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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.