Home / 12,979.08-17,911.14-7,010.75

Finding the Fourth Proportional to 12,979.08, 17,911.14 and 7,010.75

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Solution

The fourth proportional to 12,979.08, 17,911.14 and 7,010.75 is: 9,674.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979.08 : 17,911.14 = 7,010.75 : x
  2. Step 2: Convert to fraction form
    12,979.08/17,911.14 = 7,010.75/x
  3. Step 3: Cross multiply
    12,979.08x = 17,911.14 × 7,010.75
  4. Step 4: Simplify right side
    12,979.08x = 125,570,615.05
  5. Step 5: Solve for x
    x = 125,570,615.05/12,979.08
  6. Step 6: Final answer
    x = 9,674.85

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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.