Home / 11,645.50-16,070.82-6,340.36

Finding the Fourth Proportional to 11,645.50, 16,070.82 and 6,340.36

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Solution

The fourth proportional to 11,645.50, 16,070.82 and 6,340.36 is: 8,749.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,645.50 : 16,070.82 = 6,340.36 : x
  2. Step 2: Convert to fraction form
    11,645.50/16,070.82 = 6,340.36/x
  3. Step 3: Cross multiply
    11,645.50x = 16,070.82 × 6,340.36
  4. Step 4: Simplify right side
    11,645.50x = 101,894,784.30
  5. Step 5: Solve for x
    x = 101,894,784.30/11,645.50
  6. Step 6: Final answer
    x = 8,749.71

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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.