Home / 18,144.96-27,220.04-6,455.40

Finding the Fourth Proportional to 18,144.96, 27,220.04 and 6,455.40

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Solution

The fourth proportional to 18,144.96, 27,220.04 and 6,455.40 is: 9,684.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.96 : 27,220.04 = 6,455.40 : x
  2. Step 2: Convert to fraction form
    18,144.96/27,220.04 = 6,455.40/x
  3. Step 3: Cross multiply
    18,144.96x = 27,220.04 × 6,455.40
  4. Step 4: Simplify right side
    18,144.96x = 175,716,246.22
  5. Step 5: Solve for x
    x = 175,716,246.22/18,144.96
  6. Step 6: Final answer
    x = 9,684.02

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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.