Home / 9,424.28-13,005.68-5,175.72

Finding the Fourth Proportional to 9,424.28, 13,005.68 and 5,175.72

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Solution

The fourth proportional to 9,424.28, 13,005.68 and 5,175.72 is: 7,142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,424.28 : 13,005.68 = 5,175.72 : x
  2. Step 2: Convert to fraction form
    9,424.28/13,005.68 = 5,175.72/x
  3. Step 3: Cross multiply
    9,424.28x = 13,005.68 × 5,175.72
  4. Step 4: Simplify right side
    9,424.28x = 67,313,758.09
  5. Step 5: Solve for x
    x = 67,313,758.09/9,424.28
  6. Step 6: Final answer
    x = 7,142.59

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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.