Home / 18,318.08-27,458.66-7,220.48

Finding the Fourth Proportional to 18,318.08, 27,458.66 and 7,220.48

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Solution

The fourth proportional to 18,318.08, 27,458.66 and 7,220.48 is: 10,823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.08 : 27,458.66 = 7,220.48 : x
  2. Step 2: Convert to fraction form
    18,318.08/27,458.66 = 7,220.48/x
  3. Step 3: Cross multiply
    18,318.08x = 27,458.66 × 7,220.48
  4. Step 4: Simplify right side
    18,318.08x = 198,264,586.11
  5. Step 5: Solve for x
    x = 198,264,586.11/18,318.08
  6. Step 6: Final answer
    x = 10,823.44

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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.