Home / 12,628.86-17,431.65-7,324.98

Finding the Fourth Proportional to 12,628.86, 17,431.65 and 7,324.98

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Solution

The fourth proportional to 12,628.86, 17,431.65 and 7,324.98 is: 10,110.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.86 : 17,431.65 = 7,324.98 : x
  2. Step 2: Convert to fraction form
    12,628.86/17,431.65 = 7,324.98/x
  3. Step 3: Cross multiply
    12,628.86x = 17,431.65 × 7,324.98
  4. Step 4: Simplify right side
    12,628.86x = 127,686,487.62
  5. Step 5: Solve for x
    x = 127,686,487.62/12,628.86
  6. Step 6: Final answer
    x = 10,110.69

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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.