Home / 9,178.45-13,755.35-5,012.21

Finding the Fourth Proportional to 9,178.45, 13,755.35 and 5,012.21

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Solution

The fourth proportional to 9,178.45, 13,755.35 and 5,012.21 is: 7,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,178.45 : 13,755.35 = 5,012.21 : x
  2. Step 2: Convert to fraction form
    9,178.45/13,755.35 = 5,012.21/x
  3. Step 3: Cross multiply
    9,178.45x = 13,755.35 × 5,012.21
  4. Step 4: Simplify right side
    9,178.45x = 68,944,749.74
  5. Step 5: Solve for x
    x = 68,944,749.74/9,178.45
  6. Step 6: Final answer
    x = 7,511.59

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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.