Home / 13,081.75-18,054.45-7,492.75

Finding the Fourth Proportional to 13,081.75, 18,054.45 and 7,492.75

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Solution

The fourth proportional to 13,081.75, 18,054.45 and 7,492.75 is: 10,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.75 : 18,054.45 = 7,492.75 : x
  2. Step 2: Convert to fraction form
    13,081.75/18,054.45 = 7,492.75/x
  3. Step 3: Cross multiply
    13,081.75x = 18,054.45 × 7,492.75
  4. Step 4: Simplify right side
    13,081.75x = 135,277,480.24
  5. Step 5: Solve for x
    x = 135,277,480.24/13,081.75
  6. Step 6: Final answer
    x = 10,340.93

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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.