Home / 13,199.08-18,214.19-7,890.76

Finding the Fourth Proportional to 13,199.08, 18,214.19 and 7,890.76

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Solution

The fourth proportional to 13,199.08, 18,214.19 and 7,890.76 is: 10,888.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.08 : 18,214.19 = 7,890.76 : x
  2. Step 2: Convert to fraction form
    13,199.08/18,214.19 = 7,890.76/x
  3. Step 3: Cross multiply
    13,199.08x = 18,214.19 × 7,890.76
  4. Step 4: Simplify right side
    13,199.08x = 143,723,801.88
  5. Step 5: Solve for x
    x = 143,723,801.88/13,199.08
  6. Step 6: Final answer
    x = 10,888.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.