Home / 11,078.88-15,283.76-7,098.08

Finding the Fourth Proportional to 11,078.88, 15,283.76 and 7,098.08

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Solution

The fourth proportional to 11,078.88, 15,283.76 and 7,098.08 is: 9,792.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.88 : 15,283.76 = 7,098.08 : x
  2. Step 2: Convert to fraction form
    11,078.88/15,283.76 = 7,098.08/x
  3. Step 3: Cross multiply
    11,078.88x = 15,283.76 × 7,098.08
  4. Step 4: Simplify right side
    11,078.88x = 108,485,351.18
  5. Step 5: Solve for x
    x = 108,485,351.18/11,078.88
  6. Step 6: Final answer
    x = 9,792.09

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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.