Home / 11,269.73-15,555.85-7,913.36

Finding the Fourth Proportional to 11,269.73, 15,555.85 and 7,913.36

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Solution

The fourth proportional to 11,269.73, 15,555.85 and 7,913.36 is: 10,922.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.73 : 15,555.85 = 7,913.36 : x
  2. Step 2: Convert to fraction form
    11,269.73/15,555.85 = 7,913.36/x
  3. Step 3: Cross multiply
    11,269.73x = 15,555.85 × 7,913.36
  4. Step 4: Simplify right side
    11,269.73x = 123,099,060.26
  5. Step 5: Solve for x
    x = 123,099,060.26/11,269.73
  6. Step 6: Final answer
    x = 10,922.98

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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.