Home / 12,765.06-17,608.59-7,458.75

Finding the Fourth Proportional to 12,765.06, 17,608.59 and 7,458.75

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Solution

The fourth proportional to 12,765.06, 17,608.59 and 7,458.75 is: 10,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.06 : 17,608.59 = 7,458.75 : x
  2. Step 2: Convert to fraction form
    12,765.06/17,608.59 = 7,458.75/x
  3. Step 3: Cross multiply
    12,765.06x = 17,608.59 × 7,458.75
  4. Step 4: Simplify right side
    12,765.06x = 131,338,070.66
  5. Step 5: Solve for x
    x = 131,338,070.66/12,765.06
  6. Step 6: Final answer
    x = 10,288.87

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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.