Home / 13,201.12-18,217.44-7,233.12

Finding the Fourth Proportional to 13,201.12, 18,217.44 and 7,233.12

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Solution

The fourth proportional to 13,201.12, 18,217.44 and 7,233.12 is: 9,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.12 : 18,217.44 = 7,233.12 : x
  2. Step 2: Convert to fraction form
    13,201.12/18,217.44 = 7,233.12/x
  3. Step 3: Cross multiply
    13,201.12x = 18,217.44 × 7,233.12
  4. Step 4: Simplify right side
    13,201.12x = 131,768,929.61
  5. Step 5: Solve for x
    x = 131,768,929.61/13,201.12
  6. Step 6: Final answer
    x = 9,981.65

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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.