Home / 18,318.24-27,476.64-7,221.60

Finding the Fourth Proportional to 18,318.24, 27,476.64 and 7,221.60

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Solution

The fourth proportional to 18,318.24, 27,476.64 and 7,221.60 is: 10,832.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.24 : 27,476.64 = 7,221.60 : x
  2. Step 2: Convert to fraction form
    18,318.24/27,476.64 = 7,221.60/x
  3. Step 3: Cross multiply
    18,318.24x = 27,476.64 × 7,221.60
  4. Step 4: Simplify right side
    18,318.24x = 198,425,303.42
  5. Step 5: Solve for x
    x = 198,425,303.42/18,318.24
  6. Step 6: Final answer
    x = 10,832.12

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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.