Home / 18,005.10-27,007.65-4,858.80

Finding the Fourth Proportional to 18,005.10, 27,007.65 and 4,858.80

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Solution

The fourth proportional to 18,005.10, 27,007.65 and 4,858.80 is: 7,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.10 : 27,007.65 = 4,858.80 : x
  2. Step 2: Convert to fraction form
    18,005.10/27,007.65 = 4,858.80/x
  3. Step 3: Cross multiply
    18,005.10x = 27,007.65 × 4,858.80
  4. Step 4: Simplify right side
    18,005.10x = 131,224,769.82
  5. Step 5: Solve for x
    x = 131,224,769.82/18,005.10
  6. Step 6: Final answer
    x = 7,288.20

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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.