Home / 13,054.44-18,015.15-7,086.11

Finding the Fourth Proportional to 13,054.44, 18,015.15 and 7,086.11

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Solution

The fourth proportional to 13,054.44, 18,015.15 and 7,086.11 is: 9,778.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.44 : 18,015.15 = 7,086.11 : x
  2. Step 2: Convert to fraction form
    13,054.44/18,015.15 = 7,086.11/x
  3. Step 3: Cross multiply
    13,054.44x = 18,015.15 × 7,086.11
  4. Step 4: Simplify right side
    13,054.44x = 127,657,334.57
  5. Step 5: Solve for x
    x = 127,657,334.57/13,054.44
  6. Step 6: Final answer
    x = 9,778.84

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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.