Home / 12,775.32-17,629.74-7,110

Finding the Fourth Proportional to 12,775.32, 17,629.74 and 7,110

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Solution

The fourth proportional to 12,775.32, 17,629.74 and 7,110 is: 9,811.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.32 : 17,629.74 = 7,110 : x
  2. Step 2: Convert to fraction form
    12,775.32/17,629.74 = 7,110/x
  3. Step 3: Cross multiply
    12,775.32x = 17,629.74 × 7,110
  4. Step 4: Simplify right side
    12,775.32x = 125,347,451.40
  5. Step 5: Solve for x
    x = 125,347,451.40/12,775.32
  6. Step 6: Final answer
    x = 9,811.69

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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.