Home / 12,793.08-17,649.60-7,755.47

Finding the Fourth Proportional to 12,793.08, 17,649.60 and 7,755.47

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Solution

The fourth proportional to 12,793.08, 17,649.60 and 7,755.47 is: 10,699.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793.08 : 17,649.60 = 7,755.47 : x
  2. Step 2: Convert to fraction form
    12,793.08/17,649.60 = 7,755.47/x
  3. Step 3: Cross multiply
    12,793.08x = 17,649.60 × 7,755.47
  4. Step 4: Simplify right side
    12,793.08x = 136,880,943.31
  5. Step 5: Solve for x
    x = 136,880,943.31/12,793.08
  6. Step 6: Final answer
    x = 10,699.61

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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.