Home / 13,199.29-18,214.61-7,230.84

Finding the Fourth Proportional to 13,199.29, 18,214.61 and 7,230.84

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Solution

The fourth proportional to 13,199.29, 18,214.61 and 7,230.84 is: 9,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.29 : 18,214.61 = 7,230.84 : x
  2. Step 2: Convert to fraction form
    13,199.29/18,214.61 = 7,230.84/x
  3. Step 3: Cross multiply
    13,199.29x = 18,214.61 × 7,230.84
  4. Step 4: Simplify right side
    13,199.29x = 131,706,826.11
  5. Step 5: Solve for x
    x = 131,706,826.11/13,199.29
  6. Step 6: Final answer
    x = 9,978.33

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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.