Home / 18,351.08-27,518.10-8,991.56

Finding the Fourth Proportional to 18,351.08, 27,518.10 and 8,991.56

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Solution

The fourth proportional to 18,351.08, 27,518.10 and 8,991.56 is: 13,483.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.08 : 27,518.10 = 8,991.56 : x
  2. Step 2: Convert to fraction form
    18,351.08/27,518.10 = 8,991.56/x
  3. Step 3: Cross multiply
    18,351.08x = 27,518.10 × 8,991.56
  4. Step 4: Simplify right side
    18,351.08x = 247,430,647.24
  5. Step 5: Solve for x
    x = 247,430,647.24/18,351.08
  6. Step 6: Final answer
    x = 13,483.17

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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.