Home / 11,212.39-15,472.77-6,433.12

Finding the Fourth Proportional to 11,212.39, 15,472.77 and 6,433.12

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Solution

The fourth proportional to 11,212.39, 15,472.77 and 6,433.12 is: 8,877.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.39 : 15,472.77 = 6,433.12 : x
  2. Step 2: Convert to fraction form
    11,212.39/15,472.77 = 6,433.12/x
  3. Step 3: Cross multiply
    11,212.39x = 15,472.77 × 6,433.12
  4. Step 4: Simplify right side
    11,212.39x = 99,538,186.14
  5. Step 5: Solve for x
    x = 99,538,186.14/11,212.39
  6. Step 6: Final answer
    x = 8,877.52

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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.