Home / 11,284.70-15,556.66-7,917.08

Finding the Fourth Proportional to 11,284.70, 15,556.66 and 7,917.08

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Solution

The fourth proportional to 11,284.70, 15,556.66 and 7,917.08 is: 10,914.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,284.70 : 15,556.66 = 7,917.08 : x
  2. Step 2: Convert to fraction form
    11,284.70/15,556.66 = 7,917.08/x
  3. Step 3: Cross multiply
    11,284.70x = 15,556.66 × 7,917.08
  4. Step 4: Simplify right side
    11,284.70x = 123,163,282.17
  5. Step 5: Solve for x
    x = 123,163,282.17/11,284.70
  6. Step 6: Final answer
    x = 10,914.18

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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.