Home / 12,625.86-17,422.77-7,320.57

Finding the Fourth Proportional to 12,625.86, 17,422.77 and 7,320.57

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Solution

The fourth proportional to 12,625.86, 17,422.77 and 7,320.57 is: 10,101.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.86 : 17,422.77 = 7,320.57 : x
  2. Step 2: Convert to fraction form
    12,625.86/17,422.77 = 7,320.57/x
  3. Step 3: Cross multiply
    12,625.86x = 17,422.77 × 7,320.57
  4. Step 4: Simplify right side
    12,625.86x = 127,544,607.38
  5. Step 5: Solve for x
    x = 127,544,607.38/12,625.86
  6. Step 6: Final answer
    x = 10,101.86

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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.