Home / 11,573.07-15,974.76-8,917.08

Finding the Fourth Proportional to 11,573.07, 15,974.76 and 8,917.08

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Solution

The fourth proportional to 11,573.07, 15,974.76 and 8,917.08 is: 12,308.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,573.07 : 15,974.76 = 8,917.08 : x
  2. Step 2: Convert to fraction form
    11,573.07/15,974.76 = 8,917.08/x
  3. Step 3: Cross multiply
    11,573.07x = 15,974.76 × 8,917.08
  4. Step 4: Simplify right side
    11,573.07x = 142,448,212.90
  5. Step 5: Solve for x
    x = 142,448,212.90/11,573.07
  6. Step 6: Final answer
    x = 12,308.59

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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.