Home / 18,159.45-27,239.84-5,012.81

Finding the Fourth Proportional to 18,159.45, 27,239.84 and 5,012.81

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Solution

The fourth proportional to 18,159.45, 27,239.84 and 5,012.81 is: 7,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.45 : 27,239.84 = 5,012.81 : x
  2. Step 2: Convert to fraction form
    18,159.45/27,239.84 = 5,012.81/x
  3. Step 3: Cross multiply
    18,159.45x = 27,239.84 × 5,012.81
  4. Step 4: Simplify right side
    18,159.45x = 136,548,142.35
  5. Step 5: Solve for x
    x = 136,548,142.35/18,159.45
  6. Step 6: Final answer
    x = 7,519.40

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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.