Home / 18,007.48-27,009.30-4,861.20

Finding the Fourth Proportional to 18,007.48, 27,009.30 and 4,861.20

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Solution

The fourth proportional to 18,007.48, 27,009.30 and 4,861.20 is: 7,291.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.48 : 27,009.30 = 4,861.20 : x
  2. Step 2: Convert to fraction form
    18,007.48/27,009.30 = 4,861.20/x
  3. Step 3: Cross multiply
    18,007.48x = 27,009.30 × 4,861.20
  4. Step 4: Simplify right side
    18,007.48x = 131,297,609.16
  5. Step 5: Solve for x
    x = 131,297,609.16/18,007.48
  6. Step 6: Final answer
    x = 7,291.28

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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.