Home / 9,139.80-13,704.51-3,590.11

Finding the Fourth Proportional to 9,139.80, 13,704.51 and 3,590.11

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Solution

The fourth proportional to 9,139.80, 13,704.51 and 3,590.11 is: 5,383.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.80 : 13,704.51 = 3,590.11 : x
  2. Step 2: Convert to fraction form
    9,139.80/13,704.51 = 3,590.11/x
  3. Step 3: Cross multiply
    9,139.80x = 13,704.51 × 3,590.11
  4. Step 4: Simplify right side
    9,139.80x = 49,200,698.40
  5. Step 5: Solve for x
    x = 49,200,698.40/9,139.80
  6. Step 6: Final answer
    x = 5,383.13

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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.