Home / 12,535.45-18,796.23-5,145.11

Finding the Fourth Proportional to 12,535.45, 18,796.23 and 5,145.11

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Solution

The fourth proportional to 12,535.45, 18,796.23 and 5,145.11 is: 7,714.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.45 : 18,796.23 = 5,145.11 : x
  2. Step 2: Convert to fraction form
    12,535.45/18,796.23 = 5,145.11/x
  3. Step 3: Cross multiply
    12,535.45x = 18,796.23 × 5,145.11
  4. Step 4: Simplify right side
    12,535.45x = 96,708,670.94
  5. Step 5: Solve for x
    x = 96,708,670.94/12,535.45
  6. Step 6: Final answer
    x = 7,714.81

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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.