Home / 11,931.65-16,464.97-6,626.15

Finding the Fourth Proportional to 11,931.65, 16,464.97 and 6,626.15

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Solution

The fourth proportional to 11,931.65, 16,464.97 and 6,626.15 is: 9,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.65 : 16,464.97 = 6,626.15 : x
  2. Step 2: Convert to fraction form
    11,931.65/16,464.97 = 6,626.15/x
  3. Step 3: Cross multiply
    11,931.65x = 16,464.97 × 6,626.15
  4. Step 4: Simplify right side
    11,931.65x = 109,099,360.97
  5. Step 5: Solve for x
    x = 109,099,360.97/11,931.65
  6. Step 6: Final answer
    x = 9,143.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.