Home / 11,078.38-15,288.06-6,362.69

Finding the Fourth Proportional to 11,078.38, 15,288.06 and 6,362.69

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Solution

The fourth proportional to 11,078.38, 15,288.06 and 6,362.69 is: 8,780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.38 : 15,288.06 = 6,362.69 : x
  2. Step 2: Convert to fraction form
    11,078.38/15,288.06 = 6,362.69/x
  3. Step 3: Cross multiply
    11,078.38x = 15,288.06 × 6,362.69
  4. Step 4: Simplify right side
    11,078.38x = 97,273,224.70
  5. Step 5: Solve for x
    x = 97,273,224.70/11,078.38
  6. Step 6: Final answer
    x = 8,780.46

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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.