Home / 13,054.55-18,015.29-7,086.22

Finding the Fourth Proportional to 13,054.55, 18,015.29 and 7,086.22

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Solution

The fourth proportional to 13,054.55, 18,015.29 and 7,086.22 is: 9,778.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.55 : 18,015.29 = 7,086.22 : x
  2. Step 2: Convert to fraction form
    13,054.55/18,015.29 = 7,086.22/x
  3. Step 3: Cross multiply
    13,054.55x = 18,015.29 × 7,086.22
  4. Step 4: Simplify right side
    13,054.55x = 127,660,182.80
  5. Step 5: Solve for x
    x = 127,660,182.80/13,054.55
  6. Step 6: Final answer
    x = 9,778.98

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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.