Home / 11,078.64-15,288.75-6,362.82

Finding the Fourth Proportional to 11,078.64, 15,288.75 and 6,362.82

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Solution

The fourth proportional to 11,078.64, 15,288.75 and 6,362.82 is: 8,780.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.64 : 15,288.75 = 6,362.82 : x
  2. Step 2: Convert to fraction form
    11,078.64/15,288.75 = 6,362.82/x
  3. Step 3: Cross multiply
    11,078.64x = 15,288.75 × 6,362.82
  4. Step 4: Simplify right side
    11,078.64x = 97,279,564.28
  5. Step 5: Solve for x
    x = 97,279,564.28/11,078.64
  6. Step 6: Final answer
    x = 8,780.82

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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.