Home / 16,905.48-23,322.42-11,318.28

Finding the Fourth Proportional to 16,905.48, 23,322.42 and 11,318.28

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Solution

The fourth proportional to 16,905.48, 23,322.42 and 11,318.28 is: 15,614.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.48 : 23,322.42 = 11,318.28 : x
  2. Step 2: Convert to fraction form
    16,905.48/23,322.42 = 11,318.28/x
  3. Step 3: Cross multiply
    16,905.48x = 23,322.42 × 11,318.28
  4. Step 4: Simplify right side
    16,905.48x = 263,969,679.84
  5. Step 5: Solve for x
    x = 263,969,679.84/16,905.48
  6. Step 6: Final answer
    x = 15,614.44

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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.