Home / 14,551.20-20,090.16-11,187.81

Finding the Fourth Proportional to 14,551.20, 20,090.16 and 11,187.81

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Solution

The fourth proportional to 14,551.20, 20,090.16 and 11,187.81 is: 15,446.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,551.20 : 20,090.16 = 11,187.81 : x
  2. Step 2: Convert to fraction form
    14,551.20/20,090.16 = 11,187.81/x
  3. Step 3: Cross multiply
    14,551.20x = 20,090.16 × 11,187.81
  4. Step 4: Simplify right side
    14,551.20x = 224,764,892.95
  5. Step 5: Solve for x
    x = 224,764,892.95/14,551.20
  6. Step 6: Final answer
    x = 15,446.49

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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.