Home / 13,086.09-18,054.77-7,982.69

Finding the Fourth Proportional to 13,086.09, 18,054.77 and 7,982.69

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Solution

The fourth proportional to 13,086.09, 18,054.77 and 7,982.69 is: 11,013.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,086.09 : 18,054.77 = 7,982.69 : x
  2. Step 2: Convert to fraction form
    13,086.09/18,054.77 = 7,982.69/x
  3. Step 3: Cross multiply
    13,086.09x = 18,054.77 × 7,982.69
  4. Step 4: Simplify right side
    13,086.09x = 144,125,501.74
  5. Step 5: Solve for x
    x = 144,125,501.74/13,086.09
  6. Step 6: Final answer
    x = 11,013.64

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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.