Home / 18,005.87-27,009.81-4,859.26

Finding the Fourth Proportional to 18,005.87, 27,009.81 and 4,859.26

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Solution

The fourth proportional to 18,005.87, 27,009.81 and 4,859.26 is: 7,289.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.87 : 27,009.81 = 4,859.26 : x
  2. Step 2: Convert to fraction form
    18,005.87/27,009.81 = 4,859.26/x
  3. Step 3: Cross multiply
    18,005.87x = 27,009.81 × 4,859.26
  4. Step 4: Simplify right side
    18,005.87x = 131,247,723.10
  5. Step 5: Solve for x
    x = 131,247,723.10/18,005.87
  6. Step 6: Final answer
    x = 7,289.17

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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.