Home / 11,686.81-17,535.35-6,138.86

Finding the Fourth Proportional to 11,686.81, 17,535.35 and 6,138.86

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Solution

The fourth proportional to 11,686.81, 17,535.35 and 6,138.86 is: 9,210.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.81 : 17,535.35 = 6,138.86 : x
  2. Step 2: Convert to fraction form
    11,686.81/17,535.35 = 6,138.86/x
  3. Step 3: Cross multiply
    11,686.81x = 17,535.35 × 6,138.86
  4. Step 4: Simplify right side
    11,686.81x = 107,647,028.01
  5. Step 5: Solve for x
    x = 107,647,028.01/11,686.81
  6. Step 6: Final answer
    x = 9,210.99

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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.