Home / 11,239.32-16,880.85-9,160.86

Finding the Fourth Proportional to 11,239.32, 16,880.85 and 9,160.86

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Solution

The fourth proportional to 11,239.32, 16,880.85 and 9,160.86 is: 13,759.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.32 : 16,880.85 = 9,160.86 : x
  2. Step 2: Convert to fraction form
    11,239.32/16,880.85 = 9,160.86/x
  3. Step 3: Cross multiply
    11,239.32x = 16,880.85 × 9,160.86
  4. Step 4: Simplify right side
    11,239.32x = 154,643,103.53
  5. Step 5: Solve for x
    x = 154,643,103.53/11,239.32
  6. Step 6: Final answer
    x = 13,759.12

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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.