Home / 18,320.43-27,478.16-5,173.86

Finding the Fourth Proportional to 18,320.43, 27,478.16 and 5,173.86

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Solution

The fourth proportional to 18,320.43, 27,478.16 and 5,173.86 is: 7,760.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.43 : 27,478.16 = 5,173.86 : x
  2. Step 2: Convert to fraction form
    18,320.43/27,478.16 = 5,173.86/x
  3. Step 3: Cross multiply
    18,320.43x = 27,478.16 × 5,173.86
  4. Step 4: Simplify right side
    18,320.43x = 142,168,127.03
  5. Step 5: Solve for x
    x = 142,168,127.03/18,320.43
  6. Step 6: Final answer
    x = 7,760.09

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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.