Home / 14,078.90-19,406.55-11,090

Finding the Fourth Proportional to 14,078.90, 19,406.55 and 11,090

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Solution

The fourth proportional to 14,078.90, 19,406.55 and 11,090 is: 15,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.90 : 19,406.55 = 11,090 : x
  2. Step 2: Convert to fraction form
    14,078.90/19,406.55 = 11,090/x
  3. Step 3: Cross multiply
    14,078.90x = 19,406.55 × 11,090
  4. Step 4: Simplify right side
    14,078.90x = 215,218,639.50
  5. Step 5: Solve for x
    x = 215,218,639.50/14,078.90
  6. Step 6: Final answer
    x = 15,286.61

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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.