Home / 11,270.86-15,554.95-6,490.96

Finding the Fourth Proportional to 11,270.86, 15,554.95 and 6,490.96

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Solution

The fourth proportional to 11,270.86, 15,554.95 and 6,490.96 is: 8,958.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.86 : 15,554.95 = 6,490.96 : x
  2. Step 2: Convert to fraction form
    11,270.86/15,554.95 = 6,490.96/x
  3. Step 3: Cross multiply
    11,270.86x = 15,554.95 × 6,490.96
  4. Step 4: Simplify right side
    11,270.86x = 100,966,558.25
  5. Step 5: Solve for x
    x = 100,966,558.25/11,270.86
  6. Step 6: Final answer
    x = 8,958.19

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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.