Home / 12,919.16-17,828.46-7,330.16

Finding the Fourth Proportional to 12,919.16, 17,828.46 and 7,330.16

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Solution

The fourth proportional to 12,919.16, 17,828.46 and 7,330.16 is: 10,115.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.16 : 17,828.46 = 7,330.16 : x
  2. Step 2: Convert to fraction form
    12,919.16/17,828.46 = 7,330.16/x
  3. Step 3: Cross multiply
    12,919.16x = 17,828.46 × 7,330.16
  4. Step 4: Simplify right side
    12,919.16x = 130,685,375.21
  5. Step 5: Solve for x
    x = 130,685,375.21/12,919.16
  6. Step 6: Final answer
    x = 10,115.63

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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.