Home / 11,238.21-15,508.40-6,458.94

Finding the Fourth Proportional to 11,238.21, 15,508.40 and 6,458.94

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Solution

The fourth proportional to 11,238.21, 15,508.40 and 6,458.94 is: 8,913.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.21 : 15,508.40 = 6,458.94 : x
  2. Step 2: Convert to fraction form
    11,238.21/15,508.40 = 6,458.94/x
  3. Step 3: Cross multiply
    11,238.21x = 15,508.40 × 6,458.94
  4. Step 4: Simplify right side
    11,238.21x = 100,167,792.80
  5. Step 5: Solve for x
    x = 100,167,792.80/11,238.21
  6. Step 6: Final answer
    x = 8,913.14

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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.