Home / 9,128.00-13,689.90-2,554.85

Finding the Fourth Proportional to 9,128.00, 13,689.90 and 2,554.85

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Solution

The fourth proportional to 9,128.00, 13,689.90 and 2,554.85 is: 3,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.00 : 13,689.90 = 2,554.85 : x
  2. Step 2: Convert to fraction form
    9,128.00/13,689.90 = 2,554.85/x
  3. Step 3: Cross multiply
    9,128.00x = 13,689.90 × 2,554.85
  4. Step 4: Simplify right side
    9,128.00x = 34,975,572.57
  5. Step 5: Solve for x
    x = 34,975,572.57/9,128.00
  6. Step 6: Final answer
    x = 3,831.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.