Home / 13,054.33-18,015.11-7,086.05

Finding the Fourth Proportional to 13,054.33, 18,015.11 and 7,086.05

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Solution

The fourth proportional to 13,054.33, 18,015.11 and 7,086.05 is: 9,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.33 : 18,015.11 = 7,086.05 : x
  2. Step 2: Convert to fraction form
    13,054.33/18,015.11 = 7,086.05/x
  3. Step 3: Cross multiply
    13,054.33x = 18,015.11 × 7,086.05
  4. Step 4: Simplify right side
    13,054.33x = 127,655,970.22
  5. Step 5: Solve for x
    x = 127,655,970.22/13,054.33
  6. Step 6: Final answer
    x = 9,778.82

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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.