Home / 18,279.27-27,426.87-7,756.56

Finding the Fourth Proportional to 18,279.27, 27,426.87 and 7,756.56

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Solution

The fourth proportional to 18,279.27, 27,426.87 and 7,756.56 is: 11,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.27 : 27,426.87 = 7,756.56 : x
  2. Step 2: Convert to fraction form
    18,279.27/27,426.87 = 7,756.56/x
  3. Step 3: Cross multiply
    18,279.27x = 27,426.87 × 7,756.56
  4. Step 4: Simplify right side
    18,279.27x = 212,738,162.77
  5. Step 5: Solve for x
    x = 212,738,162.77/18,279.27
  6. Step 6: Final answer
    x = 11,638.22

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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.