Home / 11,157.39-15,371.10-7,794.27

Finding the Fourth Proportional to 11,157.39, 15,371.10 and 7,794.27

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Solution

The fourth proportional to 11,157.39, 15,371.10 and 7,794.27 is: 10,737.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.39 : 15,371.10 = 7,794.27 : x
  2. Step 2: Convert to fraction form
    11,157.39/15,371.10 = 7,794.27/x
  3. Step 3: Cross multiply
    11,157.39x = 15,371.10 × 7,794.27
  4. Step 4: Simplify right side
    11,157.39x = 119,806,503.60
  5. Step 5: Solve for x
    x = 119,806,503.60/11,157.39
  6. Step 6: Final answer
    x = 10,737.86

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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.